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QuestionWhy does MySQL not convert dates before 2010-01-01? Pin
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QuestionHow to use a FileInfo control to add a filename to an Access database Pin
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QuestionDATABASE KEY Pin
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Questionsql server express 2014 named instance not connecting from outside network Pin
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QuestionAny good tool (free) for DB Schema? Pin
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QuestionMS SQL Database Breach Pin
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Make sure your database server is behind a firewall, and is not exposed to the internet.

Review all of your code for SQL Injection vulnerabilities, which is the most likely culprit.
Everything you wanted to know about SQL injection (but were afraid to ask) | Troy Hunt[^]
How can I explain SQL injection without technical jargon? | Information Security Stack Exchange[^]
Query Parameterization Cheat Sheet | OWASP[^]

Stop storing passwords insecurely.
Secure Password Authentication Explained Simply[^]
Salted Password Hashing - Doing it Right[^]

In terms of recovery, you'll need to restore your databases from the last known-good backup before the databases were defaced. You'll also need to notify all of your users of the data breach, and notify your local data protection controller. You may also need to prepare to pay a large fine if any of your users are covered by GDPR or similar legislation.



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