mask (someone's) identity

Translations
скрывать (чью-то) личность
The hacker masked his identity to avoid detection.
Хакер скрыл свою личность, чтобы избежать обнаружения.
Definitions
To conceal or obscure a person's true identity, often by using disguises, false information, or other means to prevent others from recognizing or knowing who they are.
Words
mask

verb
маскировать
someone's

article or possessive pronoun
чью-либо
identity

noun
личность