diff --git a/.travis.yml b/.travis.yml
index 0de98557..ea3eb825 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,7 +5,11 @@ php:
   - 7.1
   - 7.2
   - 7.3
-install: composer install --no-interaction --prefer-source
+  - 7.4
+cache:
+  directories:
+    - $HOME/.composer/cache/files
+install: composer install --no-interaction --prefer-dist
 script:
   - vendor/bin/phpunit
   - vendor/bin/phpcs --standard=Magento2 Magento2/ --extensions=php
diff --git a/Magento2/Sniffs/Methods/DeprecatedModelMethodSniff.php b/Magento2/Sniffs/Methods/DeprecatedModelMethodSniff.php
new file mode 100644
index 00000000..94bfc2d5
--- /dev/null
+++ b/Magento2/Sniffs/Methods/DeprecatedModelMethodSniff.php
@@ -0,0 +1,79 @@
+<?php
+/**
+ * Copyright © Magento. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+namespace Magento2\Sniffs\Methods;
+
+use PHP_CodeSniffer\Sniffs\Sniff;
+use PHP_CodeSniffer\Files\File;
+
+/**
+ * Detects possible use of deprecated model methods.
+ */
+class DeprecatedModelMethodSniff implements Sniff
+{
+    const RESOURCE_METHOD = "getResource";
+
+    /**
+     * String representation of warning.
+     *
+     * @var string
+     */
+    protected $warningMessage = "The use of the deprecated method 'getResource()' to '%s' the data detected.";
+
+    /**
+     * Warning violation code.
+     *
+     * @var string
+     */
+    protected $warningCode = 'FoundDeprecatedModelMethod';
+
+    /**
+     * List of deprecated method.
+     *
+     * @var array
+     */
+    protected $methods = [
+        'save',
+        'load',
+        'delete'
+    ];
+
+    protected $severity = 0;
+
+    /**
+     * @inheritdoc
+     */
+    public function register()
+    {
+        return [
+            T_OBJECT_OPERATOR
+        ];
+    }
+    /**
+     * @inheritdoc
+     */
+    public function process(File $phpcsFile, $stackPtr)
+    {
+        $tokens = $phpcsFile->getTokens();
+        $endOfStatement = $phpcsFile->findEndOfStatement($stackPtr);
+        $resourcePosition = $phpcsFile->findNext(
+            T_STRING,
+            $stackPtr + 1,
+            $endOfStatement,
+            false,
+            self::RESOURCE_METHOD
+        );
+        if ($resourcePosition !== false) {
+            $methodPosition = $phpcsFile->findNext([T_STRING, T_VARIABLE], $resourcePosition + 1, $endOfStatement);
+            if ($methodPosition !== false && in_array($tokens[$methodPosition]['content'], $this->methods, true)) {
+                $phpcsFile->addWarning(
+                    sprintf($this->warningMessage, $tokens[$methodPosition]['content']),
+                    $stackPtr,
+                    $this->warningCode
+                );
+            }
+        }
+    }
+}
diff --git a/Magento2/Sniffs/Security/InsecureFunctionSniff.php b/Magento2/Sniffs/Security/InsecureFunctionSniff.php
index 16c69030..b5253193 100644
--- a/Magento2/Sniffs/Security/InsecureFunctionSniff.php
+++ b/Magento2/Sniffs/Security/InsecureFunctionSniff.php
@@ -20,7 +20,7 @@ class InsecureFunctionSniff extends ForbiddenFunctionsSniff
     public $forbiddenFunctions = [
         'assert' => null,
         'create_function' => null,
-        'exec' => null,
+        'exec' => '\Magento\Framework\Shell::execute',
         'md5' => 'improved hash functions (SHA-256, SHA-512 etc.)',
         'passthru' => null,
         'pcntl_exec' => null,
diff --git a/Magento2/Tests/Methods/DeprecatedModelMethodUnitTest.inc b/Magento2/Tests/Methods/DeprecatedModelMethodUnitTest.inc
new file mode 100644
index 00000000..38e7a817
--- /dev/null
+++ b/Magento2/Tests/Methods/DeprecatedModelMethodUnitTest.inc
@@ -0,0 +1,13 @@
+<?php
+
+$model->getResource()->save($model);
+
+$model->getResource()->load($model, $id);
+
+$model->getResource()->delete($model);
+
+$model->getResource()->myCustomMethod();
+
+$model->myCustomMethod();
+
+$model->anotherMethodWithResource()->save($model);
diff --git a/Magento2/Tests/Methods/DeprecatedModelMethodUnitTest.php b/Magento2/Tests/Methods/DeprecatedModelMethodUnitTest.php
new file mode 100644
index 00000000..43d88dd3
--- /dev/null
+++ b/Magento2/Tests/Methods/DeprecatedModelMethodUnitTest.php
@@ -0,0 +1,31 @@
+<?php
+/**
+ * Copyright © Magento. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+namespace Magento2\Tests\Methods;
+
+use PHP_CodeSniffer\Tests\Standards\AbstractSniffUnitTest;
+
+class DeprecatedModelMethodUnitTest extends AbstractSniffUnitTest
+{
+    /**
+     * @inheritdoc
+     */
+    public function getErrorList()
+    {
+        return [];
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function getWarningList()
+    {
+        return [
+            3 => 1,
+            5 => 1,
+            7 => 1,
+        ];
+    }
+}
diff --git a/Magento2/ruleset.xml b/Magento2/ruleset.xml
index 96188ad7..0a0bed7b 100644
--- a/Magento2/ruleset.xml
+++ b/Magento2/ruleset.xml
@@ -215,6 +215,10 @@
         <severity>8</severity>
         <type>warning</type>
     </rule>
+    <rule ref="Magento2.Methods.DeprecatedModelMethod">
+        <severity>8</severity>
+        <type>warning</type>
+    </rule>
 
     <!-- Severity 7 warnings: General code issues. -->
     <rule ref="Generic.Arrays.DisallowLongArraySyntax">
diff --git a/composer.json b/composer.json
index 2c9a1844..a700503a 100644
--- a/composer.json
+++ b/composer.json
@@ -9,7 +9,7 @@
     "version": "5",
     "require": {
         "php": ">=5.6.0",
-        "squizlabs/php_codesniffer": "^3.4",
+        "squizlabs/php_codesniffer": "^3.5",
         "webonyx/graphql-php": ">=0.12.6 <1.0"
     },
     "require-dev": {
diff --git a/composer.lock b/composer.lock
index 34b78adc..8a7111b9 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,20 +4,20 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "de90fd51a20a688a7385615a0fd7d86e",
+    "content-hash": "45be18e23c6041ce36bc5d0ffb9c85d6",
     "packages": [
         {
             "name": "squizlabs/php_codesniffer",
-            "version": "3.4.2",
+            "version": "3.5.6",
             "source": {
                 "type": "git",
                 "url": "https://github.com/squizlabs/PHP_CodeSniffer.git",
-                "reference": "b8a7362af1cc1aadb5bd36c3defc4dda2cf5f0a8"
+                "reference": "e97627871a7eab2f70e59166072a6b767d5834e0"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/squizlabs/PHP_CodeSniffer/zipball/b8a7362af1cc1aadb5bd36c3defc4dda2cf5f0a8",
-                "reference": "b8a7362af1cc1aadb5bd36c3defc4dda2cf5f0a8",
+                "url": "https://api.github.com/repos/squizlabs/PHP_CodeSniffer/zipball/e97627871a7eab2f70e59166072a6b767d5834e0",
+                "reference": "e97627871a7eab2f70e59166072a6b767d5834e0",
                 "shasum": ""
             },
             "require": {
@@ -55,7 +55,7 @@
                 "phpcs",
                 "standards"
             ],
-            "time": "2019-04-10T23:49:02+00:00"
+            "time": "2020-08-10T04:50:15+00:00"
         },
         {
             "name": "webonyx/graphql-php",
@@ -659,6 +659,7 @@
             "keywords": [
                 "tokenizer"
             ],
+            "abandoned": true,
             "time": "2017-12-04T08:55:13+00:00"
         },
         {
@@ -1492,5 +1493,6 @@
     "platform": {
         "php": ">=5.6.0"
     },
-    "platform-dev": []
+    "platform-dev": [],
+    "plugin-api-version": "1.1.0"
 }