learn system hacking

learn hacking system and protect your devices from getting hacked and losing your data .  WARNING! this book is only for educational purpose , you are the only responsable of your acctions , System hacking is the way hackers get access to individual computers on a network. Ethical hackers learn system hacking to detect, prevent, and counter these types of attacks. contact me if the payment[paypal] didn't work out  you want to buy the book or anything else ... azaz7ouhjd@gmail.com