Gray hat hacking :  the ethical hacker's handbook / 
Allen Harper... [et al.].  
 - 5th ed. - 
 - New York:    McGraw-Hill,  c2018. 
 - xxxi, 602 p. :  ill. ;  23 cm. 
<br/><br/>Includes bibliographies and index. 
<br/><br/><label>ISBN: </label>978-1-260-10841-4 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer security.<br/>Hackers.