2. 见第4、5段内容。第四段 "But the researchers had secretly withdrawn the images."即研究人员撤下了图形,第五段"Only two chose not to log on, citing security concerns.",有两个人因为安全考虑未进入。
3. T 见第6段。
4. F 见第11、14段。
5. F 见第11段"Bank of America was among the first to adopt it",可见首批采用图形识别软件的银行并非Bank of America一家。
6. A financial institution 见第二段。
7. (their) passwords 见第三段。
8. less convenience 见第十段。
9. identity 见第八、十段。
10. Silicon Valley 见第十一段。
11. easy to use 见第十二段。
12. site maintenance message 见第十三段"When respondents logged in during the study, they saw a site maintenance message on the screen where their image and phrases should have been pictured."
13. 4 分别见第十段的"download new security software"和"hardware devices that feed them PIN codes",第十五段的"a small software program, called a cookie",以及本文提到的site-authentication images。