Call us For More Details : 9682337810 5 BEST Ethical Hacking Books (2021 Update) Ethical Hacking is identifying weaknesses in computer systems/networks and coming with countermeasures that protect the weaknesses. Ethical hackers must get written permission from the computer owner before investigating and transparently report the findings. Here is a curated list of Top 5 Ethical Hacking Books that should be part of any beginner to advance Ethical hacker's library. 1.Penetration Testing 2.Hacking