Hackers use the SQL injection mentioned above to alter database software. OWASP considers it one of the most common and effective means to hack websites and SQL databases. By injecting SQL statements into form fields as a command or query, hackers exploit the lack of input filtering or the application’s other security flaws. For example, malicious input to an SQL query in the form of an argument becomes part of the SQL command. The database subsequently executes the command. 

Hackers accomplish these attacks by assuming the administrator’s identity, which allows them to access the database server. They can then change data in various ways, including:

  • Leaking data
  • Voiding transactions
  • Deleting data
  • Overwriting data
  • Hiding data

A form of hacking called “bug poaching” has emerged in recent years. These poachers can steal data and extort companies for ransom. The hackers want compensation to return the data or explain how they compromised the company’s cyber-security. It’s an enterprise-level ransomware. Hackers have also used SQL injections to vandalize websites as well as steal personal data, employee credentials, and other valuable company information.