HMC

You have chosen a 22 character word from the dictionary as your password. How long will it take to crack the password by an attacker?

A. 16 million years
B. 5 minutes
C. 23 days
D. 200 years

Correct Answer:B

這一題的觀念是字典攻擊法(dictionary attack)，利用程式加上字典檔下去循序破解。不是因為您在字典裡選了幾個字，而是密碼在字典裡找得到，被破解的機率就很高了。
這裡的"字典"也通常包含大家會常用的密碼，例如 qwerty 等。


[ 本帖最後由 HMC 於 2015-8-11 08:54 編輯 ]

HMC

Google uses a unique cookie for each browser used by an individual user on a computer. This cookie contains information that allows Google to identify records about that user on its database. This cookie is submitted every time a user launches a Google search, visits a site using AdSense etc. The information stored in Google's database, identified by the cookie, includes

Everything you search for using Google
Every web page you visit that has Google Adsense ads

How would you prevent Google from storing your search keywords?

A. Block Google Cookie by applying Privacy and Security settings in your web browser

B. Disable the Google cookie using Google Advanced Search settings on Google Search page

C. Do not use Google but use another search engine Bing which will not collect and store your search keywords

D. Use MAC OS X instead of Windows 7. Mac OS has higher level of privacy controls by default.

Correct Answer:A   以IE為例  工具 > 網際網路選項 > 隱私權 > 網站

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前幾天1位user因為IE 沒設定好，被植入 tracking cookie，這1題的觀念正好用上。


[ 本帖最後由 HMC 於 2015-8-13 17:22 編輯 ]