在Web应用的安全体系中，验证码（CAPTCHA）常被视为抵御自动化攻击的"第一道防线"。从简单的图片数字验证码到复杂的滑动拼图、行为验证，其核心目标是区分"人类用户"和"机器程序"，防止恶意攻击者通过脚本批量爆破登录、枚举用户接口、注册垃圾账号或滥用短信通道。然而，在真实的攻防对抗中，这看似坚固的防线却常常被攻破——某电商平台因验证码识别插件绕过导致百万用户信息泄露，某社交APP因短信接口滥用被 ...

Global growth is projected at –4.9 percent in 2020, 1.9 percentage points below the April 2020 World Economic Outlook (WEO) forecast. The COVID-19 pandemic has had a more negative impact on activity ...

Leeron is a New York-based writer who specializes in covering technology for small and mid-sized businesses. Her work has been featured in publications including Bankrate, Quartz, the Village Voice, ...

Escaping shoplifter gets instant karma as cop rips him off his bike Lance Stroll handed additional FIA punishment after untelevised Carlos Sainz incident How 50 Cent got his hands on Diddy footage for ...

This iceberg in Scoresby Sound, East Greenland, is one of many frozen sights in the country. Photograph by Frans Lanting, Nat Geo Image Collection Craters at Lake Myvatn in Iceland are among the ...

The bodies of 13 deceased hostages are believed to still be in Gaza. U.S. officials -- including Vice President JD Vance, Special Envoy Steve Witkoff and Jared Kushner -- traveled to Israel this week ...