What’s new in security for Ubuntu 26.04 LTS? | Ubuntu
ubuntu.com
Here’s a concise excerpt you can use:> Ubuntu 26.04 LTS significantly raises the security baseline by strengthening defaults across every layer of the system without requiring manual intervention. Key improvements include production-ready hardware-backed encryption, post-quantum–aware cryptographic defaults, modern TLS configurations, and […]

Highlights

  • Rust rewrite of GNU coreutils and sudo-rs
  • TPM-backed Full Disk Encryption now considered stable
  • More secure services (don’t run as root if not needed, AppArmor profiles)
  • AppArmor prompting for snaps is still experiemental unfortunately