Tag: captcha
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Cracked CAPTCHAs used to create malicious blogs
Blogs on Google’s blogging system redirect to spam sites. Spammers are using botnets to mass-create phony blogs on Google ‘s free Blogger system, with the phony entries redirecting to spam sites. According to research by security company Websense , a large botnet is used to surpass the CAPTCHAs used by Google in an attempt to…
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Gmail CAPTCHA cracked
Twenty per cent success rate sufficient to create thousands of spam accounts. Gmail has become the latest free webmail service to have its CAPTCHAs cracked by spammers. Following the recent news of the Yahoo Mail and Windows Live Mail CAPTCHAs having been cracked, the news of Gmail ‘s CAPTCHA being surpassed will come as little…
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Live Mail CAPTCHA system bypassed
Spammers use botnet to register accounts on popular free webmail service. Spammers have written a program that cracks the CAPTCHAS used by the Windows Live Mail registration system. The program, thought to have been installed on a large botnet of compromised systems, enables the automated creation of email accounts which can then be used to…
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Melissa has users CAPTCHA’d
Spammers offer strip show for correctly completed CAPTCHAs. Spammers have spotted a new opportunity for getting humans to help them get past the CAPTCHA tests put in place to prevent illegal use of webmail accounts: promise users a series of photographs of an increasingly scantily clad woman for every CAPTCHA they complete. The user is…
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Trojan using webmail to send spam
Captcha systems possibly cracked to automate account creation. BitDefender has reported a new trojan attempting to bypass security measures on leading webmail systems Hotmail and Yahoo! , to use their services to send out spam. The trojan, dubbed ‘Spammer.HotLan’, downloads instructions from the web, and then either logs into existing accounts and mails from there,…