Gray hat hacking :  the ethical hacker's handbook / 
Allen Harper [and others]. 
 - Fourth edition. 
 - xxix, 625 pages :  illustrations ;  24 cm 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>9780071832380 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer security.<br/>Hackers.
<br/><br/><label>LC Class. No.: </label>QA76.9.A25  / G743 2015 
<br/><br/><label>Dewey Class. No.: </label>005.8