diff --git a/apps/scandic-web/components/TempDesignSystem/Form/PasswordInput/index.tsx b/apps/scandic-web/components/TempDesignSystem/Form/PasswordInput/index.tsx
index 24c422c7b..62edf64ea 100644
--- a/apps/scandic-web/components/TempDesignSystem/Form/PasswordInput/index.tsx
+++ b/apps/scandic-web/components/TempDesignSystem/Form/PasswordInput/index.tsx
@@ -194,6 +194,10 @@ function NewPasswordValidation({
           },
           { count: 1 }
         )
+      case "allowedCharacters":
+        return intl.formatMessage({
+          defaultMessage: "Only allowed characters",
+        })
     }
   }
 
diff --git a/packages/common/utils/zod/passwordValidator.test.ts b/packages/common/utils/zod/passwordValidator.test.ts
new file mode 100644
index 000000000..1b5435013
--- /dev/null
+++ b/packages/common/utils/zod/passwordValidator.test.ts
@@ -0,0 +1,98 @@
+import { describe, expect, test } from "vitest"
+
+import { passwordValidator } from "./passwordValidator"
+
+// Test cases to find differences between Curity and Zod validation
+const testCases = [
+  // Valid passwords
+  { password: "Password123!", description: "standard valid password" },
+  { password: "ValidPass1@", description: "valid with @" },
+  { password: "TestPass9#", description: "valid with #" },
+
+  // Edge cases for length
+  { password: "Pass123!", description: "8 characters (too short for both)" },
+  { password: "ValidPass1!", description: "10 characters (minimum)" },
+  { password: "A".repeat(40) + "1!", description: "40 characters (maximum)" },
+  { password: "A".repeat(41) + "1!", description: "41 characters (too long)" },
+
+  // Special character differences
+  { password: "Password123*", description: "with asterisk" },
+  { password: "Password123-", description: "with hyphen" },
+  { password: "Password123=", description: "with equals" },
+  { password: "Password123+", description: "with plus" },
+  { password: "Password123_", description: "with underscore" },
+  { password: "Password123&", description: "with ampersand" },
+  { password: "Password123?", description: "with question mark" },
+  { password: "Password123(", description: "with opening parenthesis" },
+  { password: "Password123)", description: "with closing parenthesis" },
+
+  // International characters (Curity supports these, Zod might not)
+  { password: "Påssword123!", description: "with å" },
+  { password: "Pässword123!", description: "with ä" },
+  { password: "Pöössword123!", description: "with ö" },
+  { password: "Pæssword123!", description: "with æ" },
+  { password: "Pøssword123!", description: "with ø" },
+  { password: "Püssword123!", description: "with ü" },
+  { password: "Paßsword123!", description: "with ß" },
+
+  // Mixed case international
+  { password: "PÅSSWORD123!", description: "with uppercase Å" },
+  { password: "PÄSSWORD123!", description: "with uppercase Ä" },
+  { password: "PÖÖSSWORD123!", description: "with uppercase Ö" },
+
+  // Special characters not in Curity regex
+  { password: "Password123~", description: "with tilde (not in Curity)" },
+  { password: "Password123`", description: "with backtick (not in Curity)" },
+  { password: "Password123|", description: "with pipe (not in Curity)" },
+  { password: "Password123\\", description: "with backslash (not in Curity)" },
+  {
+    password: "Password123/",
+    description: "with forward slash (not in Curity)",
+  },
+  { password: "Password123<", description: "with less than (not in Curity)" },
+  {
+    password: "Password123>",
+    description: "with greater than (not in Curity)",
+  },
+  { password: "Password123.", description: "with period (not in Curity)" },
+  { password: "Password123,", description: "with comma (not in Curity)" },
+  { password: "Password123;", description: "with semicolon (not in Curity)" },
+  { password: "Password123:", description: "with colon (not in Curity)" },
+  { password: "Password123'", description: "with apostrophe (not in Curity)" },
+  { password: 'Password123"', description: "with quote (not in Curity)" },
+  {
+    password: "Password123[",
+    description: "with opening bracket (not in Curity)",
+  },
+  {
+    password: "Password123]",
+    description: "with closing bracket (not in Curity)",
+  },
+  {
+    password: "Password123{",
+    description: "with opening brace (not in Curity)",
+  },
+  {
+    password: "Password123}",
+    description: "with closing brace (not in Curity)",
+  },
+]
+
+const curityPasswordRegex = new RegExp(
+  "^(?!^.{41})(?=.{10,})(?=.*[0-9])(?=.*[a-zåäöæøüß])(?=.*[A-ZÅÄÖÆØÜ])(?=.*[&!?()@#$%^+=_\*\-])[A-Za-zåäöæøüßÅÄÖÆØÜ0-9&!?()@#$%^+=_\*\-]+$",
+  "g"
+)
+
+describe("Should validate password the same way as Curity", () => {
+  beforeEach(() => {
+    // reset regex state before test
+    curityPasswordRegex.lastIndex = 0
+  })
+  test.each(testCases)("$description", ({ password }) => {
+    console.log(password)
+    const curityResult = curityPasswordRegex.test(password)
+    const zodResult = passwordValidator().safeParse(password)
+
+    expect(zodResult.success).toBe(curityResult)
+  })
+})
diff --git a/packages/common/utils/zod/passwordValidator.ts b/packages/common/utils/zod/passwordValidator.ts
index a3a1fcd3d..63440a3bf 100644
--- a/packages/common/utils/zod/passwordValidator.ts
+++ b/packages/common/utils/zod/passwordValidator.ts
@@ -7,11 +7,11 @@ export const passwordValidators = {
     message: "10 to 40 characters",
   },
   hasUppercase: {
-    matcher: (password: string) => /[A-Z]/.test(password),
+    matcher: (password: string) => /[A-ZÅÄÖÆØÜ]/.test(password),
     message: "1 uppercase letter",
   },
   hasLowercase: {
-    matcher: (password: string) => /[a-z]/.test(password),
+    matcher: (password: string) => /[a-zåäöæøüß]/.test(password),
     message: "1 lowercase letter",
   },
   hasNumber: {
@@ -19,16 +19,23 @@ export const passwordValidators = {
     message: "1 number",
   },
   hasSpecialChar: {
-    matcher: (password: string) =>
-      /[!@#$%^&*()_+\-=\[\]{};':"\\|,.<>\/?]+/.test(password),
+    matcher: (password: string) => /[&!?()@#$%^+=_\*\-]+/.test(password),
     message: "1 special character",
   },
+  allowedCharacters: {
+    matcher: (password: string) =>
+      /^[A-Za-zåäöæøüßÅÄÖÆØÜ0-9&!?()@#$%^+=_\*\-]+$/.test(password),
+    message: "Only allowed characters",
+  },
 }
 
 export const passwordValidator = (msg = "Required field") =>
   z
     .string()
     .min(1, msg)
+    .refine(passwordValidators.allowedCharacters.matcher, {
+      message: passwordValidators.allowedCharacters.message,
+    })
     .refine(passwordValidators.length.matcher, {
       message: passwordValidators.length.message,
     })