Caching_sha2_password

How to change MySQL account passwords with no downtime

Changing the password of a MySQL account that an application uses was hard before MySQL 8.0. It is easy in MySQL 8.0 and later, thanks to two clauses of ALTER USER: RETAIN CURRENT PASSWORD and DISCARD OLD PASSWORD.

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Improving your MySQL Security Posture Presentation

At the MySQL BR Conference 2025 I had the opportunity to speak about Improving Your MySQL Security Posture. You can find a copy of my slides on my Presentations , and a Portugese (Brazil) translation.

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MySQL and Heatwave Summit Presentation

Last week I had the opportunity to speak at the MySQL and Heatwave Summit in San Francisco. I discussed the impact of the new MySQL 8.0 default caching_sha2_password authentication, replacing the mysql_native_password authentication that was the default for approximately 20 of the 30 years that MySQL has existed.

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