encrypt
Pronunciation: /ɛnˈkrɪpt/
verb
- convert (information or data) into a code, especially to prevent unauthorized access: all calls will be digitally encrypted to make eavesdropping impossible (as adjective encrypted) encrypted data
- (encrypt something in) conceal data in (something) by converting it into a code: the password cannot be broken as it is encrypted in the hardware

Origin:
1950s (originally US): from en-1 'in' + Greek kruptos 'hidden'