Six common outdated security tips

Conflicts between URL mapping and URL based access control.
Mapping different URLs to the same script, and relying on URL based authentication at the same time, may lead to dangerous authentication and access control gaps.
https://isc.sans.edu/diary/Conflicts%20between%20URL%20mapping%20and%20URL%20based%20access%20control./32518
Sha1-Hulud, The Second Coming
A new, destructive variant of the Shai-Hulud worm is currently spreading through NPM/Github repos.
https://www.koi.ai/incident/live-updates-sha1-hulud-the-second-coming-hundred-npm-packages-compromised
Hacklore: Cleaning up Outdated Security Advice
A new website, hacklore.org, has published an open letter from former CISOs and other security leaders aimed at addressing some outdated security advice that is often repeated.
https://www.hacklore.org