Errata for Essential Cybersecurity Science
The errata list is a list of errors and their corrections that were found after the product was released. If the error was corrected in a later version or reprint the date of the correction will be displayed in the column titled "Date Corrected".
The following errata were submitted by our customers and approved as valid errors by the author or editor.
Color key: Serious technical mistake Minor technical mistake Language or formatting error Typo Question Note Update
|Version||Location||Description||Submitted By||Date submitted||Date corrected|
2nd bullet-point - "Science creates and improves products"
The 2nd bullet-point "Science creates and improves products" finishes with the following sentence: "For infosec decision-makers, the scientifc method can make product evaluations defensible and efficient." The word "scientifc" is missing an 'i' character, it should "scientific" The error is also visible in the sampler at http://cdn.oreillystatic.com/oreilly/booksamplers/9781491920947_sampler.pdf
|Angus Smithson||Jan 24, 2016||Mar 18, 2016|
Just before final paragraph
The book states: The false negative rate is here: (True Negatives) / (True Positives + True Negatives) I don't believe this formula is correct, it should be: (False Negatives) / (True Positives + False Negatives) OR 1 - (True Positive Rate) Given some example data: TP: 100 TN: 15 FP: 25 FN: 5 Book equation: TN / (TP + TN) 15 / (100 + 15) 0.130434783 Correct equation #1: FN / (TP + FN) 5 / (100 + 5) 0.047619048 Correct equation #2: 1 - TPR 1 - (TP / (TP + FN)) 1 - (100 / (100 + 5)) 1 - 0.952380952 0.047619048
Note from the Author or Editor:
|angusws||Feb 15, 2016||Mar 18, 2016|