diff --git a/00-backend/README.md b/00-backend/README.md
index 1adf6d8..bf577ba 100644
--- a/00-backend/README.md
+++ b/00-backend/README.md
@@ -22,6 +22,12 @@
     ```shell
     mvn clean package
     ```
+   
+## Interesting Knowledge
+- `controller/` includes all REST-Endpoints
+- `model/` includes all REST-Responses
+- `service/` includes all Business Logic
+- `repository/entities` includes all DB-Objects
 
 # Contributors
 - Laura Katharina Dolibois
diff --git a/00-backend/pom.xml b/00-backend/pom.xml
index 1acb389..357de3e 100644
--- a/00-backend/pom.xml
+++ b/00-backend/pom.xml
@@ -58,6 +58,11 @@
 			<artifactId>spring-boot-starter-validation</artifactId>
 			<version>3.4.1</version>
 		</dependency>
+		<dependency>
+			<groupId>org.springframework.security</groupId>
+			<artifactId>spring-security-crypto</artifactId>
+			<version>6.4.4</version>
+		</dependency>
 		<dependency>
 			<groupId>org.xerial</groupId>
 			<artifactId>sqlite-jdbc</artifactId>
diff --git a/00-backend/src/main/java/de/htwsaar/webshop/config/ControllerPathConfig.java b/00-backend/src/main/java/de/htwsaar/webshop/config/ControllerPathConfig.java
index 9fd86de..5e8b9e4 100644
--- a/00-backend/src/main/java/de/htwsaar/webshop/config/ControllerPathConfig.java
+++ b/00-backend/src/main/java/de/htwsaar/webshop/config/ControllerPathConfig.java
@@ -15,4 +15,9 @@ public class ControllerPathConfig {
     //ImageController
     public static final String IMAGE_BASE = "/image";
     public static final String IMAGE_GET_ALL = IMAGE_BASE + "/all";
+
+    //AccountController
+    public static final String ACCOUNT_BASE = "/account";
+    public static final String EMAIL_BASE = "/email";
+
 }
\ No newline at end of file
diff --git a/00-backend/src/main/java/de/htwsaar/webshop/config/ParameterConfig.java b/00-backend/src/main/java/de/htwsaar/webshop/config/ParameterConfig.java
index 62836f3..ce6c394 100644
--- a/00-backend/src/main/java/de/htwsaar/webshop/config/ParameterConfig.java
+++ b/00-backend/src/main/java/de/htwsaar/webshop/config/ParameterConfig.java
@@ -7,5 +7,6 @@ public class ParameterConfig {
     public static final String PARAM_UUID = "uuid";
     public static final String PARAM_ARTICLE_ID = "articleId";
     public static final String PARAM_IMAGE_ID = "imageId";
+    public static final String PARAM_EMAIL = "email";
 
 }
diff --git a/00-backend/src/main/java/de/htwsaar/webshop/controller/AccountController.java b/00-backend/src/main/java/de/htwsaar/webshop/controller/AccountController.java
new file mode 100644
index 0000000..dce295e
--- /dev/null
+++ b/00-backend/src/main/java/de/htwsaar/webshop/controller/AccountController.java
@@ -0,0 +1,74 @@
+package de.htwsaar.webshop.controller;
+
+import de.htwsaar.webshop.repository.entities.Account;
+import de.htwsaar.webshop.service.AccountService;
+import de.htwsaar.webshop.service.ValidatorService;
+import jakarta.servlet.http.HttpServletRequest;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.*;
+
+import static de.htwsaar.webshop.config.ControllerPathConfig.ACCOUNT_BASE;
+import static de.htwsaar.webshop.config.ControllerPathConfig.EMAIL_BASE;
+import static de.htwsaar.webshop.config.ParameterConfig.PARAM_EMAIL;
+import static de.htwsaar.webshop.util.LoggerUtil.logRequest;
+
+@RestController
+@Slf4j
+public class AccountController {
+
+    private final AccountService accountService;
+    private final ValidatorService validatorService;
+
+    @Autowired
+    public AccountController(AccountService accountService, ValidatorService validatorService) {
+        this.accountService = accountService;
+        this.validatorService = validatorService;
+    }
+
+    @RequestMapping(path = EMAIL_BASE, method = RequestMethod.GET, produces = "application/json")
+    public ResponseEntity<Boolean> isEmailValid(HttpServletRequest request,
+                                                @RequestParam(PARAM_EMAIL) String email) {
+        logRequest(request);
+        return accountService.existsWithEmail(email) ?
+                ResponseEntity.ok(true) :
+                ResponseEntity.notFound().build();
+    }
+
+    @RequestMapping(path = ACCOUNT_BASE, method = RequestMethod.POST, produces = "application/json")
+    public ResponseEntity<Void> createAccount(HttpServletRequest request,
+                                                 @RequestBody Account account) {
+        logRequest(request);
+        if (validatorService.isInvalid(account)) {
+            log.warn("[{}] failed Validation, sending bad request", request.getRequestURI());
+            return ResponseEntity.badRequest().build();
+        }
+        if(accountService.existsWithEmail(account.getEmail())) {
+            log.warn("[{}] Account cant be created, Email is already in use", request.getRequestURI());
+            return ResponseEntity.unprocessableEntity().build();
+        }
+        if(accountService.saveNew(account).getId() == null) {
+            return ResponseEntity.internalServerError().build();
+        }
+        return ResponseEntity.ok().build();
+    }
+
+    @RequestMapping(path = ACCOUNT_BASE, method = RequestMethod.DELETE, produces = "application/json")
+    public ResponseEntity<Void> deleteAccount(HttpServletRequest request,
+                                              @RequestBody Account account) {
+        logRequest(request);
+        if (validatorService.isInvalid(account)) {
+            log.warn("[{}] failed Validation, sending bad request", request.getRequestURI());
+            return ResponseEntity.badRequest().build();
+        }
+        if(accountService.existsWithEmail(account.getEmail())) {
+            return ResponseEntity.badRequest().build();
+        }
+        if(!accountService.deleteIfExists(account)) {
+            return ResponseEntity.badRequest().build();
+        }
+        return ResponseEntity.ok().build();
+    }
+
+}
diff --git a/00-backend/src/main/java/de/htwsaar/webshop/repository/AccountRepository.java b/00-backend/src/main/java/de/htwsaar/webshop/repository/AccountRepository.java
index 65109d4..8dedd67 100644
--- a/00-backend/src/main/java/de/htwsaar/webshop/repository/AccountRepository.java
+++ b/00-backend/src/main/java/de/htwsaar/webshop/repository/AccountRepository.java
@@ -6,5 +6,7 @@ import org.springframework.stereotype.Repository;
 
 @Repository
 public interface AccountRepository extends JpaRepository<Account, Long> {
+    Account getAccountByEmail(String email);
 
+    boolean existsAccountByEmail(String email);
 }
diff --git a/00-backend/src/main/java/de/htwsaar/webshop/service/AccountService.java b/00-backend/src/main/java/de/htwsaar/webshop/service/AccountService.java
new file mode 100644
index 0000000..5e4b700
--- /dev/null
+++ b/00-backend/src/main/java/de/htwsaar/webshop/service/AccountService.java
@@ -0,0 +1,12 @@
+package de.htwsaar.webshop.service;
+
+import de.htwsaar.webshop.repository.entities.Account;
+
+public interface AccountService {
+    Account saveNew(Account account);
+    Account save(Account account);
+    boolean deleteIfExists(Account account);
+    Account getAccountByEmail(String email);
+    boolean isValidLogin(String email, String password);
+    boolean existsWithEmail(String email);
+}
\ No newline at end of file
diff --git a/00-backend/src/main/java/de/htwsaar/webshop/service/PasswordService.java b/00-backend/src/main/java/de/htwsaar/webshop/service/PasswordService.java
new file mode 100644
index 0000000..5dbc1e0
--- /dev/null
+++ b/00-backend/src/main/java/de/htwsaar/webshop/service/PasswordService.java
@@ -0,0 +1,6 @@
+package de.htwsaar.webshop.service;
+
+public interface PasswordService {
+    String hashPassword(String password);
+    boolean verifyPassword(String password, String hashedPassword);
+}
\ No newline at end of file
diff --git a/00-backend/src/main/java/de/htwsaar/webshop/service/impl/AccountServiceImpl.java b/00-backend/src/main/java/de/htwsaar/webshop/service/impl/AccountServiceImpl.java
new file mode 100644
index 0000000..9ab6e97
--- /dev/null
+++ b/00-backend/src/main/java/de/htwsaar/webshop/service/impl/AccountServiceImpl.java
@@ -0,0 +1,60 @@
+package de.htwsaar.webshop.service.impl;
+
+import de.htwsaar.webshop.repository.AccountRepository;
+import de.htwsaar.webshop.repository.entities.Account;
+import de.htwsaar.webshop.service.AccountService;
+import de.htwsaar.webshop.service.PasswordService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+@Service
+public class AccountServiceImpl implements AccountService {
+    private final AccountRepository accountRepository;
+    private final PasswordService passwordService;
+
+    @Autowired
+    public AccountServiceImpl(AccountRepository accountRepository, PasswordService passwordService) {
+        this.accountRepository = accountRepository;
+        this.passwordService = passwordService;
+    }
+
+    @Override
+    public Account save(Account account) {
+        return accountRepository.save(account);
+    }
+
+    @Override
+    public Account saveNew(Account account) {
+        account.setPassword(passwordService.hashPassword(account.getPassword()));
+        return this.save(account);
+    }
+
+    @Override
+    public boolean deleteIfExists(Account account) {
+        Account tbd = accountRepository.getAccountByEmail(account.getEmail());
+        if(tbd == null) {
+            return false;
+        }
+        accountRepository.delete(tbd);
+        return true;
+    }
+
+    @Override
+    public Account getAccountByEmail(String email) {
+        return accountRepository.getAccountByEmail(email);
+    }
+
+    @Override
+    public boolean isValidLogin(String email, String password) {
+        Account acc = accountRepository.getAccountByEmail(email);
+        if(acc == null) {
+            return false;
+        }
+        return passwordService.verifyPassword(password, acc.getPassword());
+    }
+
+    @Override
+    public boolean existsWithEmail(String email) {
+        return accountRepository.existsAccountByEmail(email);
+    }
+}
diff --git a/00-backend/src/main/java/de/htwsaar/webshop/service/impl/PasswordServiceImpl.java b/00-backend/src/main/java/de/htwsaar/webshop/service/impl/PasswordServiceImpl.java
new file mode 100644
index 0000000..70e9de9
--- /dev/null
+++ b/00-backend/src/main/java/de/htwsaar/webshop/service/impl/PasswordServiceImpl.java
@@ -0,0 +1,33 @@
+package de.htwsaar.webshop.service.impl;
+
+import de.htwsaar.webshop.service.PasswordService;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.security.crypto.bcrypt.BCrypt;
+import org.springframework.stereotype.Service;
+
+
+/**
+ * Implementation of {@link PasswordService} responsible for creating the salt string.
+ * <p>
+ * This service generates the salt.
+ * </p>
+ */
+@Service
+@Slf4j
+public class PasswordServiceImpl implements PasswordService {
+    /**
+     * A way to generate Password aafterBCrypt Standard <br>
+     * This is computationally expensive
+     *
+     * @return a non-deterministic Salt for BCrypt.
+     */
+    @Override
+    public String hashPassword(String password) {
+        return BCrypt.hashpw(password, BCrypt.gensalt(12));
+    }
+
+    @Override
+    public boolean verifyPassword(String password, String hashedPassword) {
+        return BCrypt.checkpw(password, hashedPassword);
+    }
+}
\ No newline at end of file