encryption
n. C / U B2 Upper Intermediate US //ɛnˈkɹɪpʃən// UK //ɛnkɹˈɪpʃən// en·cryp·tion
n. the process of changing information into a secret code so that only the right person can read it. You use encryption to keep your data safe online.
n. the conversion of data into a coded format to prevent unauthorized access. Uncountable in its abstract sense; countable when referring to specific methods or systems.
Encryption keeps your messages private.
The company uses strong encryption to protect customer passwords.
Modern encryption algorithms rely on complex mathematical problems that are easy to solve in one direction but nearly impossible to reverse without a key.
From encrypt + -ion.