Ubuntu 26.04 LTS raises the security baseline across every system layer simultaneously. Key improvements include TPM-backed Full Disk Encryption now in general availability, full host and guest support for AMD SEV-SNP and Intel TDX confidential computing, post-quantum cryptographic defaults via OpenSSH 10.2 with hybrid
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Security is no longer installer-time only: Security Center becomes a control planeTPM-backed Full Disk Encryption is ready for real-world deploymentConfidential computing: host and guest support for SEV-SNP and TDXStrengthening the security core with memory-safe foundationsModern cryptography by defaultIdentity and directory services run with less privilegeSecure Boot and firmware hardeningWeb and TLS defaults move forwardA modern kernel and container baselineEvolving application confinement with AppArmorWhat makes Ubuntu 26.04 LTS strongSort: