Availability

One of the three pillars of the CIA (Confidentiality, Integrity, Availability) security triad. Availability ensures that network services are accessible to authorized users when needed. Network availability is often measured by uptime percentages (e.g., 99.999% "five nines").

More from the TelcoSec Glossary

Browse the full TelcoSec Glossary, the Ultimate Guide to Mobile Network Security, or the P1 Arsenal of telecom-security tools.