月度归档:2013年02月

关于 Google reCAPTCHA 的验证码

首先需要强调的是,验证码绝对是一项反人类的发明!

但是辩证唯物主义告诉我们,凡事都要一分为二的来看,有的验证码在骚扰正常上网行为的同时在某些方面也出了不为人知的贡献。以下就以 Google reCAPTCHA 的验证码服务举例说明。

国外很多下载站用到下面这种验证码,它其实是 Google 提供的 reCAPTCHA 服务(link),可以免费申请和使用。
关于 reCAPTCHA 验证码 继续阅读

Facebook hacked, social media company says

Facebook said on Friday that it been the target of a series of attacks by an unidentified hacker group, but it had found no evidence that user data was compromised.

"Last month, Facebook security discovered that our systems had been targeted in a sophisticated attack," the company said in a blog post. "The attack occurred when a handful of employees visited a mobile developer website that was compromised."

The social network, which says it has more than one billion active users worldwide, added: "Facebook was not alone in this attack. It is clear that others were attacked and infiltrated recently as well."

Facebook's announcement follows recent cyber attacks on other prominent websites. Twitter, the microblogging social network, said this month that it had been hacked, and that approximately 250,000 user accounts were potentially compromised, with attackers gaining access to information including user names and email addresses.

Newspaper websites including The New York Times, The Washington Post, and The Wall Street Journal have also been infiltrated, according to the news organizations. Those attacks were attributed by the news organizations to Chinese hackers targeting their coverage of China.

(Reporting By Tim Reid)