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UPDATED: Twitter Security Flaw Today – OnMouseOver

A new security flaw has been discovered on Twitter today. It is easy to reproduce, to exploit, to play with. It can cause a user’s account to take actions that the exploiter puts into a specially-crafted tweet, without the user realizing it. For example, causing the Twitter user to be redirected to a different website, any website of the exploiter’s choosing. [UPDATE #2] Read More »

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TwitSweeper blocks Malware and Spam with new tool

TwitSweeper — the leading software for detecting spam and malware in Twitter accounts — now detects malware, spam and phishing sites associated with certain shortened URLs. This is a growing problem as Twitter clients use, TinyURL and many other custom white-label shorteners like,,,,,,,,,,,,, and, to name a few. Read More »


Is Twitter Winning the War on Spam? Our Stats Do Not Support this Assertion

Frederic Lardinois’ article on March 23, 2010 refers to Twitter’s assertion that spam is not an issue. According to the latest data from Twitter, the percentage of spammy tweets per day is now down under 1%.

Here’s the issue. Our stats don’t support this assertion. Read More »


The Evils of Reciprocal Following on Twitter

“Reciprocal following” is when you follow the people who follow you on Twitter. Sounds harmless, even nice. But don’t be fooled. Many problems are caused by this practice. Reciprocal following should be discontinued — here’s why. Read More »

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Shorter Durations Now Available for TwitSweeper

When TwitSweeper first launched in public beta and started removing people’s spammy followers from their Twitter accounts, it was available for free trial and after the trial, for a low annual fee. However, shorter payment periods are now also available. Read More »

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Twitter Spam: Can You Block What You Can’t Define?

We take twitter spam seriously around here. We often use words like spam, spammers and undesirables. And it always leads to the same question: “what is spam?” Read More »

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Lots of Spam potential on Twitter (unless we stop it)

Twitter is still in its infancy. The question is; could spam come to dominate Twitter to the same degree that spam overwhelms email traffic? I sure hope not. Read More »


Should Confirmation Page be Paginated? (request for user feedback)

Request for User Feedback on Proposed Change to TwitSweeper

BACKGROUND: When TwitSweeper finds spammy or otherwise undesirable followers on a user’s Twitter account, it queues those followers for confirmation. When the user returns to TwitSweeper, they are presented with a list of the undesirable followers and asked to confirm (or retain) them. These undesirable followers are currently displayed in one long list. Read More »