What security measures should be implemented when transferring sensitive data, such as bank account information, in PHP scripts?

When transferring sensitive data such as bank account information in PHP scripts, it is crucial to use secure communication protocols like HTTPS to encrypt the data in transit. Additionally, you should never store sensitive data in plain text format and instead use secure methods like hashing or encryption to protect the information. It is also important to sanitize user input to prevent SQL injection attacks and validate the data to ensure it meets the required format. 

// Example of transferring sensitive data securely in PHP using HTTPS
$url = 'https://example.com/api';
$data = array(
    'bank_account' => encrypt($user_input['bank_account']),
    'password' => hash('sha256', $user_input['password'])
);

$options = array(
    'http' => array(
        'method' => 'POST',
        'header' => 'Content-type: application/json',
        'content' => json_encode($data)
    )
);

$context = stream_context_create($options);
$response = file_get_contents($url, false, $context);

if ($response === false) {
    // Handle error
} else {
    // Process response
}

Keywords

SSL encryption secure sockets layer password hashing data validation

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