This free course, taught by a leading IIT Kharagpur professor, already has over 45,000 enrollments on the Swayam portal.

This 18-course bundle breaks down the fundamentals of ethical hacking, including practical tips like help finding free tools, and it's only $44.99 (reg. $719).

A new form of computer hacking attack called a Remote Access Trojan hack, or a RAT, cost one suburban woman more than $9,000 before she was able to recover the money.