One of the most significant flaws in the Louvre's cybersecurity was lazy password use. "Louvre" appeared to be the password to access the museum's video surveillance. One computer login password was "Thales," the name of the software developer, which we're guessing was visible on the login screen.

The recent heist at the Louvre, in which jewelry worth around €88 million (US$101 million) was stolen from the museum in broad daylight, has revealed glaring weaknesses in the museum's security systems.

If you’re using ‘123456’ as a password for your online accounts, you should change it. Here are other bad passwords of 2025 that hackers can steal with ease.

Using any password manager is better than using none, so if you’re avoiding your browser’s password manager because you’ve heard it’s unsafe, and as a result, use the same password across websites, stop. Your browser is more secure. But for folks who don’t mind a bit of friction for better security, a third-party password manager is the way to go.

France's court of auditors urged the Louvre museum to speed up its security modernization plans as a priority, in a report conducted before the Oct. 19 jewels heist that noted major delays in the renovation of the world’s most-visited museum.

A French court released a report Thursday slamming the leadership of the Louvre for its focus on headline-grabbing purchases and renovation projects over maintaining the security of on of the world’s largest museums.