Keren Elazari (Hebrew: קרן אלעזרי; born 1980 or 1981[1]), also known as k3r3n3,[2] is an Israeli cybersecurity analyst, writer, and speaker.

[2] Her father is Ami Elazari, the CEO of an electric company and a former member of the Israel Defense Forces intelligence group, Unit 8200.

[2][6][7] Elazari was drafted into the Israel Defense Forces, where she asked to be placed in a role relating to information security.

[5] In 2014, Elazari gave a popular[12][5] TED talk titled "Hackers: The Internet's Immune System".

[4] She spoke at DEF CON 22 in 2014, delivering a talk titled "Empowering Hackers to Create a Positive Impact",[1] and has spoken at other conferences including the Atlantic Security Conference in Halifax, Nova Scotia in 2015.