diff --git a/src/Command/DbAnonymizeCommand.php b/src/Command/DbAnonymizeCommand.php
new file mode 100644
index 0000000..4463a31
--- /dev/null
+++ b/src/Command/DbAnonymizeCommand.php
@@ -0,0 +1,62 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Command;
+
+use App\Service\DatabaseAnonymizer;
+use Psr\Log\LoggerInterface;
+use Symfony\Component\Console\Attribute\AsCommand;
+use Symfony\Component\Console\Command\Command;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+use Symfony\Component\Console\Style\SymfonyStyle;
+
+#[AsCommand(
+    name: 'app:db:anonymize',
+    description: 'Anonymize personal data in the local database',
+)]
+final class DbAnonymizeCommand extends Command
+{
+    public function __construct(
+        private readonly DatabaseAnonymizer $databaseAnonymizer,
+        private readonly LoggerInterface $logger,
+        private readonly string $environment,
+    ) {
+        parent::__construct();
+    }
+
+    protected function execute(InputInterface $input, OutputInterface $output): int
+    {
+        $io = new SymfonyStyle($input, $output);
+
+        if ('prod' === $this->environment) {
+            $io->error('The database anonymizer is disabled in the prod environment.');
+
+            return Command::FAILURE;
+        }
+
+        try {
+            $report = $this->databaseAnonymizer->anonymizeAll();
+        } catch (\Throwable $exception) {
+            $this->logger->error('Database anonymization failed', [
+                'environment' => $this->environment,
+                'error' => $exception->getMessage(),
+            ]);
+
+            $io->error($exception->getMessage());
+
+            return Command::FAILURE;
+        }
+
+        $io->success(sprintf(
+            'Anonymized %d users, %d newsletter consents, %d newsletter opt-in requests, and %d booking drafts.',
+            $report['users'],
+            $report['newsletterConsents'],
+            $report['newsletterOptInRequests'],
+            $report['bookingEditDrafts'],
+        ));
+
+        return Command::SUCCESS;
+    }
+}
diff --git a/src/Entity/BookingEditDraft.php b/src/Entity/BookingEditDraft.php
index 3fbbd4a..e6dcdce 100644
--- a/src/Entity/BookingEditDraft.php
+++ b/src/Entity/BookingEditDraft.php
@@ -164,6 +164,20 @@ class BookingEditDraft
         return $this;
     }
 
+    /**
+     * Replaces the form data without touching timestamps.
+     *
+     * Used by anonymization tooling that must not alter audit dates.
+     *
+     * @param array<string, mixed> $formData
+     */
+    public function replaceFormData(array $formData): static
+    {
+        $this->formData = $formData;
+
+        return $this;
+    }
+
     public function getCreatedAt(): \DateTimeImmutable
     {
         return $this->createdAt;
diff --git a/src/Entity/NewsletterConsent.php b/src/Entity/NewsletterConsent.php
index 008804b..8745ed4 100644
--- a/src/Entity/NewsletterConsent.php
+++ b/src/Entity/NewsletterConsent.php
@@ -65,6 +65,11 @@ class NewsletterConsent
         return $this->email;
     }
 
+    public function setEmail(string $email): void
+    {
+        $this->email = mb_strtolower(trim($email));
+    }
+
     public function getMailjetListId(): int
     {
         return $this->mailjetListId;
@@ -90,6 +95,16 @@ class NewsletterConsent
         return $this->lastName;
     }
 
+    public function getCreatedAt(): \DateTimeImmutable
+    {
+        return $this->createdAt;
+    }
+
+    public function getUpdatedAt(): \DateTimeImmutable
+    {
+        return $this->updatedAt;
+    }
+
     public function isConfirmed(): bool
     {
         return null !== $this->confirmedAt && null === $this->revokedAt;
diff --git a/src/Entity/NewsletterOptInRequest.php b/src/Entity/NewsletterOptInRequest.php
index 3cf920a..0f87339 100644
--- a/src/Entity/NewsletterOptInRequest.php
+++ b/src/Entity/NewsletterOptInRequest.php
@@ -76,6 +76,11 @@ class NewsletterOptInRequest
         return $this->email;
     }
 
+    public function setEmail(string $email): void
+    {
+        $this->email = mb_strtolower(trim($email));
+    }
+
     public function getTokenHash(): string
     {
         return $this->tokenHash;
diff --git a/src/Service/DatabaseAnonymizer.php b/src/Service/DatabaseAnonymizer.php
new file mode 100644
index 0000000..ca7ed11
--- /dev/null
+++ b/src/Service/DatabaseAnonymizer.php
@@ -0,0 +1,445 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Service;
+
+use App\Entity\BookingEditDraft;
+use App\Entity\NewsletterConsent;
+use App\Entity\NewsletterOptInRequest;
+use App\Entity\User;
+use Faker\Factory;
+use Faker\Generator;
+use Doctrine\ORM\EntityManagerInterface;
+use Psr\Log\LoggerInterface;
+
+/**
+ * Anonymizes local database records while keeping identifiers and dates intact.
+ *
+ * The service reuses the same synthetic identity for repeated source identities
+ * during one run so related rows stay linked after anonymization.
+ */
+class DatabaseAnonymizer
+{
+    private const string SYNTHETIC_EMAIL_DOMAIN = 'example.test';
+    private const string SYNTHETIC_COUNTRY = 'DE';
+    private const string SYNTHETIC_IBAN = 'DE89370400440532013000';
+    private const int DEFAULT_BATCH_SIZE = 100;
+
+    /**
+     * @var array<string, array<string, string>>
+     */
+    private array $identityMap = [];
+
+    private int $identitySequence = 0;
+
+    private readonly Generator $faker;
+
+    public function __construct(
+        private readonly EntityManagerInterface $entityManager,
+        private readonly LoggerInterface $logger,
+    ) {
+        $this->faker = Factory::create('de_DE');
+    }
+
+    public function resetState(): void
+    {
+        $this->identityMap = [];
+        $this->identitySequence = 0;
+    }
+
+    public function anonymizeAll(int $batchSize = self::DEFAULT_BATCH_SIZE): array
+    {
+        if ($batchSize < 1) {
+            throw new \InvalidArgumentException('Batch size must be at least 1.');
+        }
+
+        $this->resetState();
+
+        $report = [
+            'users' => $this->anonymizeQuery(
+                'SELECT u FROM App\Entity\User u ORDER BY u.id ASC',
+                fn (User $user) => $this->anonymizeUser($user),
+                $batchSize,
+            ),
+            'newsletterConsents' => $this->anonymizeQuery(
+                'SELECT c FROM App\Entity\NewsletterConsent c ORDER BY c.id ASC',
+                fn (NewsletterConsent $consent) => $this->anonymizeNewsletterConsent($consent),
+                $batchSize,
+            ),
+            'newsletterOptInRequests' => $this->anonymizeQuery(
+                'SELECT r FROM App\Entity\NewsletterOptInRequest r ORDER BY r.id ASC',
+                fn (NewsletterOptInRequest $request) => $this->anonymizeNewsletterOptInRequest($request),
+                $batchSize,
+            ),
+            'bookingEditDrafts' => $this->anonymizeQuery(
+                'SELECT d FROM App\Entity\BookingEditDraft d ORDER BY d.id ASC',
+                fn (BookingEditDraft $draft) => $this->anonymizeBookingEditDraft($draft),
+                $batchSize,
+            ),
+        ];
+
+        $this->entityManager->flush();
+
+        $this->logger->info('Anonymized local database records', $report);
+
+        return $report;
+    }
+
+    public function anonymizeUser(User $user): void
+    {
+        $identity = $this->resolveIdentity(
+            email: $user->getEmail(),
+        );
+
+        $user->setEmail($identity['email']);
+    }
+
+    public function anonymizeNewsletterConsent(NewsletterConsent $consent): void
+    {
+        $identity = $this->resolveIdentity(
+            email: $consent->getEmail(),
+            firstName: $consent->getFirstName(),
+            lastName: $consent->getLastName(),
+        );
+
+        $consent->setEmail($identity['email']);
+        $consent->setNames(
+            $this->shouldReplaceName($consent->getFirstName()) ? $identity['firstName'] : $consent->getFirstName(),
+            $this->shouldReplaceName($consent->getLastName()) ? $identity['lastName'] : $consent->getLastName(),
+        );
+    }
+
+    public function anonymizeNewsletterOptInRequest(NewsletterOptInRequest $request): void
+    {
+        $identity = $this->resolveIdentity(
+            email: $request->getEmail(),
+            firstName: $request->getFirstName(),
+            lastName: $request->getLastName(),
+        );
+
+        $request->setEmail($identity['email']);
+        $request->setNames(
+            $this->shouldReplaceName($request->getFirstName()) ? $identity['firstName'] : $request->getFirstName(),
+            $this->shouldReplaceName($request->getLastName()) ? $identity['lastName'] : $request->getLastName(),
+        );
+    }
+
+    public function anonymizeBookingEditDraft(BookingEditDraft $draft): void
+    {
+        $formData = $draft->getFormData();
+        $formData = $this->anonymizeDraftFormData($formData);
+
+        $draft->replaceFormData($formData);
+    }
+
+    /**
+     * @param callable(object):void $anonymize
+     */
+    private function anonymizeQuery(string $dql, callable $anonymize, int $batchSize): int
+    {
+        $query = $this->entityManager->createQuery($dql);
+        $processed = 0;
+        $pendingFlush = 0;
+
+        foreach ($query->toIterable() as $entity) {
+            $anonymize($entity);
+            ++$processed;
+            ++$pendingFlush;
+
+            if (0 === $pendingFlush % $batchSize) {
+                $this->entityManager->flush();
+                $this->entityManager->clear();
+                $pendingFlush = 0;
+            }
+        }
+
+        if ($pendingFlush > 0) {
+            $this->entityManager->flush();
+            $this->entityManager->clear();
+        }
+
+        return $processed;
+    }
+
+    /**
+     * @param array<string, mixed> $formData
+     *
+     * @return array<string, mixed>
+     */
+    private function anonymizeDraftFormData(array $formData): array
+    {
+        if (isset($formData['bankAccount']) && true === is_array($formData['bankAccount'])) {
+            $formData['bankAccount'] = $this->anonymizeBankAccountData($formData['bankAccount']);
+        }
+
+        if (isset($formData['participants']) && true === is_array($formData['participants'])) {
+            foreach ($formData['participants'] as $index => $participantData) {
+                if (false === is_array($participantData)) {
+                    continue;
+                }
+
+                $formData['participants'][$index] = $this->anonymizeParticipantData($participantData);
+            }
+        }
+
+        return $formData;
+    }
+
+    /**
+     * @param array<string, mixed> $participantData
+     *
+     * @return array<string, mixed>
+     */
+    private function anonymizeParticipantData(array $participantData): array
+    {
+        $identity = $this->resolveIdentity(
+            email: $this->stringOrNull($participantData['personalData']['email'] ?? null),
+            firstName: $this->stringOrNull($participantData['personalData']['firstName'] ?? null),
+            lastName: $this->stringOrNull($participantData['personalData']['lastName'] ?? null),
+            fullName: $this->stringOrNull($participantData['personalData']['name'] ?? null),
+            fallback: $this->stringOrNull($participantData['licensePlate'] ?? null),
+        );
+
+        if (isset($participantData['personalData']) && true === is_array($participantData['personalData'])) {
+            $participantData['personalData'] = $this->anonymizePersonalData($participantData['personalData'], $identity);
+        }
+
+        if (isset($participantData['address']) && true === is_array($participantData['address'])) {
+            $participantData['address'] = $this->anonymizeAddressData($participantData['address'], $identity);
+        }
+
+        if (isset($participantData['roomAssignment']) && true === is_array($participantData['roomAssignment'])) {
+            if (array_key_exists('remarksRoom', $participantData['roomAssignment'])) {
+                $participantData['roomAssignment']['remarksRoom'] = $this->placeholderText($identity, 'remarks');
+            }
+        }
+
+        if (array_key_exists('licensePlate', $participantData)) {
+            $participantData['licensePlate'] = $this->placeholderText($identity, 'plate');
+        }
+
+        if (isset($participantData['bankAccount']) && true === is_array($participantData['bankAccount'])) {
+            $participantData['bankAccount'] = $this->anonymizeBankAccountData($participantData['bankAccount'], $identity);
+        }
+
+        return $participantData;
+    }
+
+    /**
+     * @param array<string, mixed> $personalData
+     * @param array<string, string> $identity
+     *
+     * @return array<string, mixed>
+     */
+    private function anonymizePersonalData(array $personalData, array $identity): array
+    {
+        if (array_key_exists('firstName', $personalData) && null !== $personalData['firstName']) {
+            $personalData['firstName'] = $identity['firstName'];
+        }
+
+        if (array_key_exists('lastName', $personalData) && null !== $personalData['lastName']) {
+            $personalData['lastName'] = $identity['lastName'];
+        }
+
+        if (array_key_exists('email', $personalData) && null !== $personalData['email']) {
+            $personalData['email'] = $identity['email'];
+        }
+
+        if (array_key_exists('mobile', $personalData) && null !== $personalData['mobile']) {
+            $personalData['mobile'] = $identity['mobile'];
+        }
+
+        if (array_key_exists('phone', $personalData) && null !== $personalData['phone']) {
+            $personalData['phone'] = $identity['phone'];
+        }
+
+        if (array_key_exists('name', $personalData) && null !== $personalData['name']) {
+            $personalData['name'] = $identity['lastName'];
+        }
+
+        return $personalData;
+    }
+
+    /**
+     * @param array<string, mixed> $addressData
+     * @param array<string, string> $identity
+     *
+     * @return array<string, mixed>
+     */
+    private function anonymizeAddressData(array $addressData, array $identity): array
+    {
+        if (array_key_exists('street', $addressData) && null !== $addressData['street']) {
+            $addressData['street'] = $identity['street'];
+        }
+
+        if (array_key_exists('postCode', $addressData) && null !== $addressData['postCode']) {
+            $addressData['postCode'] = $identity['postCode'];
+        }
+
+        if (array_key_exists('city', $addressData) && null !== $addressData['city']) {
+            $addressData['city'] = $identity['city'];
+        }
+
+        if (array_key_exists('country', $addressData) && null !== $addressData['country']) {
+            $addressData['country'] = $identity['country'];
+        }
+
+        if (array_key_exists('district', $addressData) && null !== $addressData['district']) {
+            $addressData['district'] = $identity['district'];
+        }
+
+        return $addressData;
+    }
+
+    /**
+     * @param array<string, mixed> $bankAccountData
+     * @param array<string, string>|null $identity
+     *
+     * @return array<string, mixed>
+     */
+    private function anonymizeBankAccountData(array $bankAccountData, ?array $identity = null): array
+    {
+        $identity ??= $this->resolveIdentity(
+            fullName: $this->stringOrNull($bankAccountData['accountHolder'] ?? null),
+        );
+
+        if (array_key_exists('iban', $bankAccountData) && null !== $bankAccountData['iban']) {
+            $bankAccountData['iban'] = $identity['iban'];
+        }
+
+        if (array_key_exists('accountHolder', $bankAccountData) && null !== $bankAccountData['accountHolder']) {
+            $bankAccountData['accountHolder'] = $identity['accountHolder'];
+        }
+
+        if (array_key_exists('bankName', $bankAccountData) && null !== $bankAccountData['bankName']) {
+            $bankAccountData['bankName'] = $identity['bankName'];
+        }
+
+        if (array_key_exists('bic', $bankAccountData) && null !== $bankAccountData['bic']) {
+            $bankAccountData['bic'] = $identity['bic'];
+        }
+
+        return $bankAccountData;
+    }
+
+    /**
+     * @return array<string, string>
+     */
+    private function resolveIdentity(?string $email = null, ?string $firstName = null, ?string $lastName = null, ?string $fullName = null, ?string $fallback = null): array
+    {
+        $aliases = [];
+
+        foreach ([
+            $this->normalizeIdentityKey('email', $email),
+            $this->normalizeIdentityKey('name', null !== $fullName ? $fullName : trim(($firstName ?? '').' '.($lastName ?? ''))),
+            $this->normalizeIdentityKey('fallback', $fallback),
+        ] as $alias) {
+            if (null !== $alias) {
+                $aliases[] = $alias;
+            }
+        }
+
+        foreach ($aliases as $alias) {
+            if (isset($this->identityMap[$alias])) {
+                $identity = $this->identityMap[$alias];
+                foreach ($aliases as $candidateAlias) {
+                    $this->identityMap[$candidateAlias] = $identity;
+                }
+
+                return $identity;
+            }
+        }
+
+        $identity = $this->createIdentity();
+        foreach ($aliases as $alias) {
+            $this->identityMap[$alias] = $identity;
+        }
+
+        return $identity;
+    }
+
+    /**
+     * @return array<string, string>
+     */
+    private function createIdentity(): array
+    {
+        ++$this->identitySequence;
+        $sequence = $this->identitySequence;
+
+        $firstName = $this->faker->firstName();
+        $lastName = $this->faker->lastName();
+        $emailLocal = sprintf('%s.%s.%04d', $this->slug($firstName), $this->slug($lastName), $sequence);
+
+        return [
+            'firstName' => $firstName,
+            'lastName' => $lastName,
+            'email' => sprintf('%s@%s', $emailLocal, self::SYNTHETIC_EMAIL_DOMAIN),
+            'mobile' => $this->faker->numerify('01#########'),
+            'phone' => $this->faker->numerify('0##########'),
+            'street' => sprintf('%s %s', $this->faker->streetName(), $this->faker->buildingNumber()),
+            'postCode' => $this->faker->postcode(),
+            'city' => $this->faker->city(),
+            'country' => self::SYNTHETIC_COUNTRY,
+            'district' => $this->faker->citySuffix(),
+            'accountHolder' => $firstName.' '.$lastName,
+            'bankName' => $this->faker->company(),
+            'iban' => self::SYNTHETIC_IBAN,
+            'bic' => 'GENODEF1SYN',
+            'licensePlate' => sprintf('SYN-%05d', $sequence),
+        ];
+    }
+
+    private function normalizeIdentityKey(string $type, ?string $value): ?string
+    {
+        $normalized = $this->stringOrNull($value);
+        if (null === $normalized) {
+            return null;
+        }
+
+        return $type.':'.mb_strtolower($normalized);
+    }
+
+    private function shouldReplaceName(?string $value): bool
+    {
+        return null !== $this->stringOrNull($value);
+    }
+
+    private function placeholderText(array $identity, string $suffix): string
+    {
+        return sprintf('%s-%s', $identity['lastName'], $suffix);
+    }
+
+    private function stringOrNull(mixed $value): ?string
+    {
+        if (null === $value) {
+            return null;
+        }
+
+        if (false === is_string($value)) {
+            return trim((string) $value);
+        }
+
+        $trimmed = trim($value);
+
+        return '' === $trimmed ? null : $trimmed;
+    }
+
+    private function slug(string $value): string
+    {
+        $normalizedValue = iconv('UTF-8', 'ASCII//TRANSLIT//IGNORE', $value);
+        if (false === $normalizedValue) {
+            $normalizedValue = $value;
+        }
+
+        $normalizedValue = strtolower($normalizedValue);
+        $normalizedValue = preg_replace('/[^a-z0-9]+/', '.', $normalizedValue);
+        $normalizedValue = trim((string) $normalizedValue, '.');
+
+        if ('' === $normalizedValue) {
+            return 'user';
+        }
+
+        return $normalizedValue;
+    }
+}
diff --git a/tests/Command/DbAnonymizeCommandTest.php b/tests/Command/DbAnonymizeCommandTest.php
new file mode 100644
index 0000000..a5db6ad
--- /dev/null
+++ b/tests/Command/DbAnonymizeCommandTest.php
@@ -0,0 +1,55 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Tests\Command;
+
+use App\Command\DbAnonymizeCommand;
+use App\Service\DatabaseAnonymizer;
+use PHPUnit\Framework\TestCase;
+use Psr\Log\LoggerInterface;
+use Symfony\Component\Console\Command\Command;
+use Symfony\Component\Console\Tester\CommandTester;
+
+class DbAnonymizeCommandTest extends TestCase
+{
+    public function testCommandRefusesToRunInProdEnvironment(): void
+    {
+        $anonymizer = $this->createMock(DatabaseAnonymizer::class);
+        $anonymizer->expects(self::never())->method('anonymizeAll');
+
+        $tester = new CommandTester($this->createCommand($anonymizer, 'prod'));
+        $tester->execute([]);
+
+        self::assertSame(Command::FAILURE, $tester->getStatusCode());
+        self::assertStringContainsString('disabled in the prod environment', $tester->getDisplay());
+    }
+
+    public function testCommandDelegatesOutsideProdEnvironment(): void
+    {
+        $anonymizer = $this->createMock(DatabaseAnonymizer::class);
+        $anonymizer->expects(self::once())
+            ->method('anonymizeAll')
+            ->willReturn([
+                'users' => 1,
+                'newsletterConsents' => 2,
+                'newsletterOptInRequests' => 3,
+                'bookingEditDrafts' => 4,
+            ]);
+
+        $tester = new CommandTester($this->createCommand($anonymizer, 'dev'));
+        $tester->execute([]);
+
+        self::assertSame(Command::SUCCESS, $tester->getStatusCode());
+        self::assertStringContainsString('Anonymized 1 users, 2 newsletter consents, 3 newsletter opt-in requests, and 4 booking drafts.', $tester->getDisplay());
+    }
+
+    private function createCommand(DatabaseAnonymizer $anonymizer, string $environment): DbAnonymizeCommand
+    {
+        return new DbAnonymizeCommand(
+            $anonymizer,
+            $this->createMock(LoggerInterface::class),
+            $environment,
+        );
+    }
+}
diff --git a/tests/Service/DatabaseAnonymizerTest.php b/tests/Service/DatabaseAnonymizerTest.php
new file mode 100644
index 0000000..779fd6e
--- /dev/null
+++ b/tests/Service/DatabaseAnonymizerTest.php
@@ -0,0 +1,190 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Tests\Service;
+
+use App\Entity\BookingEditDraft;
+use App\Entity\NewsletterConsent;
+use App\Entity\NewsletterOptInRequest;
+use App\Entity\User;
+use App\Service\DatabaseAnonymizer;
+use Doctrine\ORM\EntityManagerInterface;
+use PHPUnit\Framework\TestCase;
+use Psr\Log\NullLogger;
+
+class DatabaseAnonymizerTest extends TestCase
+{
+    public function testAnonymizeEntityMethodsReuseSharedIdentityAndPreserveDraftTimestamps(): void
+    {
+        $service = new DatabaseAnonymizer(
+            $this->createMock(EntityManagerInterface::class),
+            new NullLogger(),
+        );
+
+        $user = new User('Mia.Muster@example.com');
+        $user->setPassword('plain-text-password');
+        $user->setPersonId(12345);
+        $user->setAddressId(67890);
+        $user->setRoles(['ROLE_ADMIN']);
+        $user->setHotelCodes(['ABC']);
+        $lastLoginAt = new \DateTimeImmutable('2026-06-01 10:00:00');
+        $user->setLastLoginAt($lastLoginAt);
+        $user->setProfileComplete(true);
+
+        $consent = new NewsletterConsent('Mia.Muster@example.com', 42, 'Mia', 'Muster');
+        $consent->markConfirmed(new \DateTimeImmutable('2026-06-02 11:00:00'));
+
+        $request = new NewsletterOptInRequest(
+            'Mia.Muster@example.com',
+            str_repeat('a', 64),
+            new \DateTimeImmutable('2026-07-01 12:00:00'),
+            [11, 22],
+            'Mia',
+            'Muster',
+        );
+        $request->markConfirmed(new \DateTimeImmutable('2026-06-03 13:00:00'));
+
+        $draft = new BookingEditDraft($user, 999, new \DateTimeImmutable('2026-08-15'), [
+            'paymentMethod' => 'debit',
+            'bankAccount' => [
+                'iban' => 'DE02123412341234123412',
+                'accountHolder' => 'Mia Muster',
+                'bankName' => 'Example Bank',
+                'sepaMandateAccepted' => true,
+            ],
+            'participants' => [
+                0 => [
+                    'personalData' => [
+                        'firstName' => 'Mia',
+                        'lastName' => 'Muster',
+                        'dateOfBirth' => '1990-05-15',
+                        'email' => 'Mia.Muster@example.com',
+                        'mobile' => '+49123456789',
+                        'gender' => 'W',
+                        'nationality' => 'DE',
+                    ],
+                    'address' => [
+                        'street' => 'Main Street 1',
+                        'postCode' => '12345',
+                        'city' => 'Berlin',
+                        'country' => 'DE',
+                        'district' => 'Mitte',
+                    ],
+                    'bodyDimensions' => [
+                        'height' => '180',
+                        'weight' => '70',
+                        'shoeSize' => '42',
+                    ],
+                    'roomAssignment' => [
+                        'assignedRoomId' => 7,
+                        'remarksRoom' => 'Window please',
+                    ],
+                    'licensePlate' => 'B-AB-1234',
+                    'services' => [
+                        'skiPass' => 10,
+                        'courses' => [11],
+                        'board' => [12],
+                        'rentals' => [13],
+                        'rentalInsurance' => 14,
+                        'additionalServices' => [15],
+                        'transportationOutbound' => 16,
+                        'transportationInbound' => 17,
+                        'pickup' => 18,
+                        'dropOff' => 19,
+                        'parking' => true,
+                        'insurance' => 20,
+                        'bulkInsuranceBooking' => false,
+                    ],
+                    'vouchers' => [
+                        'purchaseVoucherCode' => 'PURCHASE-123',
+                        'promoVoucherCode' => 'PROMO-456',
+                    ],
+                ],
+                1 => [
+                    'personalData' => [
+                        'firstName' => 'Mia',
+                        'lastName' => 'Muster',
+                        'dateOfBirth' => '1990-05-15',
+                        'email' => 'Mia.Muster@example.com',
+                        'mobile' => '+49123456789',
+                        'gender' => 'W',
+                        'nationality' => 'DE',
+                    ],
+                    'address' => [
+                        'street' => 'Main Street 1',
+                        'postCode' => '12345',
+                        'city' => 'Berlin',
+                        'country' => 'DE',
+                    ],
+                    'services' => [
+                        'additionalServices' => [99],
+                    ],
+                ],
+            ],
+        ]);
+        $draft->setBookingNumber(321);
+        $draft->setDateId(55);
+        $draft->setHotelId(77);
+
+        $originalConsentCreatedAt = $consent->getCreatedAt();
+        $originalConsentUpdatedAt = $consent->getUpdatedAt();
+        $originalRequestCreatedAt = $request->getCreatedAt();
+        $originalDraftCreatedAt = $draft->getCreatedAt();
+        $originalDraftUpdatedAt = $draft->getUpdatedAt();
+
+        $service->anonymizeUser($user);
+        $service->anonymizeNewsletterConsent($consent);
+        $service->anonymizeNewsletterOptInRequest($request);
+        $service->anonymizeBookingEditDraft($draft);
+
+        self::assertStringEndsWith('@example.test', $user->getEmail());
+        self::assertSame('plain-text-password', $user->getPassword());
+        self::assertSame(12345, $user->getPersonId());
+        self::assertSame(67890, $user->getAddressId());
+        self::assertSame(['ROLE_USER', 'ROLE_ADMIN'], $user->getRoles());
+        self::assertSame(['ABC'], $user->getHotelCodes());
+        self::assertSame($lastLoginAt, $user->getLastLoginAt());
+        self::assertTrue($user->isProfileComplete());
+
+        self::assertSame($user->getEmail(), $consent->getEmail());
+        self::assertSame($consent->getEmail(), $request->getEmail());
+        self::assertSame($consent->getFirstName(), $request->getFirstName());
+        self::assertSame($consent->getLastName(), $request->getLastName());
+        self::assertSame(42, $consent->getMailjetListId());
+        self::assertSame([11, 22], $request->getMailjetListIds());
+        self::assertSame(str_repeat('a', 64), $request->getTokenHash());
+        self::assertTrue($consent->isConfirmed());
+        self::assertTrue($request->isConfirmed());
+        self::assertSame($originalConsentCreatedAt, $consent->getCreatedAt());
+        self::assertSame($originalConsentUpdatedAt, $consent->getUpdatedAt());
+        self::assertSame($originalRequestCreatedAt, $request->getCreatedAt());
+
+        $formData = $draft->getFormData();
+        self::assertSame('debit', $formData['paymentMethod']);
+        self::assertNotSame('DE02123412341234123412', $formData['bankAccount']['iban']);
+        self::assertSame(
+            $formData['participants'][0]['personalData']['firstName'].' '.$formData['participants'][0]['personalData']['lastName'],
+            $formData['bankAccount']['accountHolder'],
+        );
+        self::assertNotSame('Example Bank', $formData['bankAccount']['bankName']);
+        self::assertSame('DE', $formData['participants'][0]['personalData']['nationality']);
+        self::assertSame('W', $formData['participants'][0]['personalData']['gender']);
+        self::assertSame('1990-05-15', $formData['participants'][0]['personalData']['dateOfBirth']);
+        self::assertSame($formData['participants'][0]['personalData']['email'], $formData['participants'][1]['personalData']['email']);
+        self::assertSame($formData['participants'][0]['personalData']['firstName'], $formData['participants'][1]['personalData']['firstName']);
+        self::assertSame($formData['participants'][0]['personalData']['lastName'], $formData['participants'][1]['personalData']['lastName']);
+        self::assertSame($formData['participants'][0]['address']['street'], $formData['participants'][1]['address']['street']);
+        self::assertSame($formData['participants'][0]['address']['postCode'], $formData['participants'][1]['address']['postCode']);
+        self::assertSame($formData['participants'][0]['address']['city'], $formData['participants'][1]['address']['city']);
+        self::assertSame($formData['participants'][0]['address']['country'], $formData['participants'][1]['address']['country']);
+        self::assertSame(7, $formData['participants'][0]['roomAssignment']['assignedRoomId']);
+        self::assertSame('PURCHASE-123', $formData['participants'][0]['vouchers']['purchaseVoucherCode']);
+        self::assertSame('PROMO-456', $formData['participants'][0]['vouchers']['promoVoucherCode']);
+        self::assertSame(321, $draft->getBookingNumber());
+        self::assertSame(55, $draft->getDateId());
+        self::assertSame(77, $draft->getHotelId());
+        self::assertSame($originalDraftCreatedAt, $draft->getCreatedAt());
+        self::assertSame($originalDraftUpdatedAt, $draft->getUpdatedAt());
+    }
+}