diff --git a/README.md b/README.md
index 250c95a..fa171b1 100644
--- a/README.md
+++ b/README.md
@@ -225,6 +225,20 @@ Complete list of available validators in the library. Use them in your validatio
 | regex             | Custom regex, e.g. regex:/^[0-9]+$/ |
 | upper             | No lowercase letters (digits ok)    |
 
+### Password Validators
+
+| Validator       | Description                                                        |
+| --------------- | ------------------------------------------------------------------ |
+| password        | Requires uppercase, lowercase, number and special character       |
+| numericPassword | Requires only numeric characters, suitable for PIN-style passwords |
+
+```php
+$rules = [
+    'password' => 'required|min:8|max:64|password',
+    'pin' => 'required|min:4|max:6|numericPassword',
+];
+```
+
 ### Brazilian Data Validators
 
 | Validator             | Description                                                              |
diff --git a/composer.json b/composer.json
index 08a6970..baefdf4 100644
--- a/composer.json
+++ b/composer.json
@@ -87,6 +87,11 @@
             "name": "Thales Santos",
             "email": "thales_sblue@hotmail.com",
             "role": "Developer"
+        },
+        {
+            "name": "Luca Mattosinho Teixeira",
+            "email": "lucamattosinho@gmail.com",
+            "role": "Developer"
         }
     ],
     "support": {
diff --git a/src/DependencyInjection/TraitRule.php b/src/DependencyInjection/TraitRule.php
index de19ba8..c3006d6 100644
--- a/src/DependencyInjection/TraitRule.php
+++ b/src/DependencyInjection/TraitRule.php
@@ -17,7 +17,7 @@ private function methodsNoRuleValue(): array
             'validateFileUploadMandatory', 'validateDateBrazil', 'validateDateAmerican', 'validateHour',
             'validateTimestamp', 'validateWeekend', 'validateArray', 'validateFieldMandatory', 'validateBoolean',
             'validateFloating', 'validateJson', 'validateDateNotFuture', 'validateDateIso8601',
-            'validateDateUTCWithoutTimezone',
+            'validateDateUTCWithoutTimezone', 'validatePassword', 'validateNumericPassword',
         ];
     }
 
@@ -72,6 +72,7 @@ private static function functionsValidationMtoN(): array
             'notSpace' => 'validateSpace',
             'noWeekend' => 'validateWeekend',
             'numeric' => 'validateNumeric',
+            'numericPassword' => 'validateNumericPassword',
             'numMax' => 'validateNumMax',
             'numMin' => 'validateNumMin',
             'numMonth' => 'validateNumMonth',
@@ -84,6 +85,8 @@ private static function functionsValidationOtoZ(): array
             'ddd' => 'validateDdd',
             'optional' => 'validateOptional',
             'phone' => 'validatePhone',
+            'password' => 'validatePassword',
+            'ddd' => 'validateDdd',
             'plate' => 'validatePlate',
             'regex' => 'validateRegex',
             'required' => 'validateFieldMandatory',
diff --git a/src/DependencyInjection/TraitRuleString.php b/src/DependencyInjection/TraitRuleString.php
index 3b7ceb5..c7992ae 100644
--- a/src/DependencyInjection/TraitRuleString.php
+++ b/src/DependencyInjection/TraitRuleString.php
@@ -339,6 +339,27 @@ protected function validatePhone(string $field = '', string $value = '', ?string
         $this->errors[$field] = !empty($message) ? $message : "O campo $field não é um telefone válido!";
     }
 
+    protected function validatePassword(string $field = '', string $value = '', ?string $message = ''): void
+    {
+        if (
+            !preg_match('@[A-Z]@', $value)
+            || !preg_match('@[a-z]@', $value)
+            || !preg_match('@[0-9]@', $value)
+            || !preg_match('/[^A-Za-z0-9]/', $value)
+        ) {
+            $this->errors[$field] = !empty($message) ?
+                $message : "O campo $field precisa conter maiúscula, minúscula, número e símbolo!";
+        }
+    }
+
+    protected function validateNumericPassword(string $field = '', string $value = '', ?string $message = ''): void
+    {
+        if (!ctype_digit($value)) {
+            $this->errors[$field] = !empty($message) ?
+                $message : "O campo $field precisa conter apenas números!";
+        }
+    }
+
     protected function validateRegex(
         string $rule = '',
         string $field = '',
diff --git a/tests/StringTest.php b/tests/StringTest.php
index b28064b..82c5c31 100644
--- a/tests/StringTest.php
+++ b/tests/StringTest.php
@@ -348,6 +348,75 @@ public function testRegex(): void
         self::assertValidatorErrorCount(1, $array, $rules);
     }
 
+    public function testPassword(): void
+    {
+        $array = [
+            'testValid' => 'Password1!',
+            'testErrorNoUppercase' => 'password1!',
+            'testErrorNoLowercase' => 'PASSWORD1!',
+            'testErrorNoNumber' => 'Password!',
+            'testErrorNoSymbol' => 'Password1',
+        ];
+        $rules = array_fill_keys(array_keys($array), 'password');
+
+        self::assertValidatorErrorCount(4, $array, $rules);
+    }
+
+    public function testNumericPassword(): void
+    {
+        $array = [
+            'testValidWithLeadingZero' => '012345',
+            'testValid' => '123456',
+            'testErrorLetters' => '123a56',
+            'testErrorDecimal' => '123.56',
+            'testErrorWhitespace' => '123 56',
+            'testErrorEmpty' => '',
+        ];
+        $rules = array_fill_keys(array_keys($array), 'numericPassword');
+
+        self::assertValidatorErrorCount(4, $array, $rules);
+    }
+
+    public function testPasswordWithCustomMessage(): void
+    {
+        $message = 'A senha não atende aos requisitos de segurança.';
+        $validator = $this->validate(
+            ['password' => 'password1!'],
+            ['password' => 'password, ' . $message]
+        );
+
+        self::assertSame($message, $validator->getErros()['password']);
+    }
+
+    public function testNumericPasswordWithCustomMessage(): void
+    {
+        $message = 'O PIN deve conter apenas números.';
+        $validator = $this->validate(
+            ['pin' => '12a4'],
+            ['pin' => 'numericPassword, ' . $message]
+        );
+
+        self::assertSame($message, $validator->getErros()['pin']);
+    }
+
+    public function testPasswordValidatorsWithLengthRules(): void
+    {
+        $array = [
+            'validPassword' => 'Password1!',
+            'shortPassword' => 'Aa1!',
+            'validPin' => '0123',
+            'longPin' => '1234567',
+        ];
+        $rules = [
+            'validPassword' => 'required|min:8|max:64|password',
+            'shortPassword' => 'required|min:8|max:64|password',
+            'validPin' => 'required|min:4|max:6|numericPassword',
+            'longPin' => 'required|min:4|max:6|numericPassword',
+        ];
+
+        self::assertValidatorErrorCount(2, $array, $rules);
+    }
+
     public function testNotSpace(): void
     {
         $array = [