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Twitter is a social media platform that allows users to share messages, known as tweets, in real-time. In the context of information security, Twitter plays a significant role due to its vast user base and the speed at which information—and misinformation—can spread. Security concerns on Twitter include account hacking, impersonation, phishing attacks, and the spread of malicious links or software. The platform also faces challenges with protecting user privacy and data, as well as managing the security implications of bots and automated accounts. As such, Twitter is an ongoing topic of interest for information security professionals who monitor and develop strategies to mitigate risks associated with social networking sites.
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Also: Obama Twitter Hacker Ordered to Forfeit $5.3 MillionEvery week, ISMG rounds up cybersecurity incidents in digital assets. This week, Samourai Wallet founders and Oklahoma Crypto CEO sentenced, Obama Twitter hacker ordered to forfeit funds, Chicago crypto ATM CEO charged and White House is reviewing a rule expanding IRS crypto oversight.
Civil recovery order targets PlugwalkJoe's illicit gains while he serves US sentence British prosecutors have secured a civil recovery order to seize crypto assets worth £4.11 million ($5.39 million) from Twitter hacker Joseph James O'Connor, clawing back the proceeds of a scam that used hijacked celebrity accounts to solicit digital currency and threaten high-profile individuals.…
Social media site dispatches crucial clarification days after curious announcement X (formerly Twitter) sparked security concerns over the weekend when it announced users must re-enroll their security keys by November 10 or face account lockouts — without initially explaining why.…
A 22-year-old Oregon man has been arrested on suspicion of operating "Rapper Bot," a massive botnet used to power a service for launching distributed denial-of-service (DDoS) attacks against targets -- including a March 2025 DDoS that knocked Twitter/X offline. The Justice Department asserts the suspect and an unidentified co-conspirator rented out the botnet to online extortionists, and tried to stay off the radar of law enforcement by ensuring that their botnet was never pointed at KrebsOnSecurity.
In May 2025, the U.S. government sanctioned a Chinese national for operating a cloud provider linked to the majority of virtual currency investment scam websites reported to the FBI. But more than a month later, the accused continues to openly operate accounts at a slew of American tech companies, including Facebook, Github, LinkedIn, PayPal and Twitter/X.
A employee at Elon Musk's artificial intelligence company xAI leaked a private key on GitHub that for the past two months could have allowed anyone to query private xAI large language models (LLMs) which appear to have been custom made for working with internal data from Musk's companies, including SpaceX, Tesla and Twitter/X, KrebsOnSecurity has learned.
'Dark Storm Team" Takes Responsibility for 4 Major Outages on MondayRepeated outages Monday on social media platform X - formerly Twitter - are the result of a distributed denial of service attack, asserted platform owner Elon Musk in a sporadically available tweet. The social media platform experienced four significant outages.
At 49, Branden Spikes isn't just one of the oldest technologists who has been involved in Elon Musk's Department of Government Efficiency (DOGE). As the current director of information technology at X/Twitter and an early hire at PayPal, Zip2, Tesla and SpaceX, Spikes is also among Musk's most loyal employees. Here's a closer look at this trusted Musk lieutenant, whose Russian ex-wife was once married to Elon's cousin.
Grok 3 Aims to Close Gap With GPT-4o, Gemini, Touting 'Truth-Seeking' AIElon Musk-owned artificial intelligence company xAI released a new model late Monday night, its answer to OpenAI's GPT-4o and Google Gemini. The "Grok 3" model can analyze images and respond to questions like its counterparts, and powers features on Musk's social network X, formerly Twitter.
Social media platform X (formerly Twitter) is now blocking links to "Signal.me," a URL used by the Signal encrypted messaging to share your account info with another person. [...]
Offer Comes Amid Legal Battle Between the Former OpenAI Co-FoundersElon Musk has reportedly offered to buy OpenAI's operating assets for $97.4 billion, escalating his legal and business battle with the artificial intelligence company's CEO Sam Altman. Altman dismissed the offer and said he will buy Twitter for $9.74 billion - if Musk is interested.
As users are flocking to BlueSky from social media platforms like X/Twitter, so are threat actors. BleepingComputer has spotted cryptocurrency scams popping up on BlueSky just as the decentralized microblogging service surpassed 20 million users this week. [...]
SIM swapping and “adversary-in-the-middle” can bypass security for accounts on X (formerly Twitter)
The Irish data protection watchdog accuses X Corp’s European subsidiary of breaching GDPR with Grok AI training
Crypto exchange Kraken revealed that an unnamed security researcher exploited an "extremely critical" zero-day flaw in its platform to steal $3 million in digital assets and refused to return them
The official Microsoft India account on Twitter, with over 211,000 followers, was hijacked by cryptocurrency scammers to impersonate Roaring Kitty, the handle used by notorious meme stock trader Keith Gill. [...]
Malicious Android apps masquerading as Google, Instagram, Snapchat, WhatsApp, and X (formerly Twitter) have been observed to steal users' credentials from compromised devices
Ouch! Millions of Kaiser Permanente patients' data was likely shared with Google, Microsoft Bing, X/Twitter, and other third-parties, according to the American healthcare giant.…
On April 9, Twitter/X began automatically modifying links that mention "twitter.com" to redirect to "x.com" instead. But over the past 48 hours, dozens of new domain names have been registered that demonstrate how this change could be used to craft convincing phishing links -- such as fedetwitter[.]com, which is currently rendered as fedex.com in tweets.
Poorly implemented rule allowed miscreants to deceive users with trusted URLs Elon Musk's X has apparently fixed an embarrassing issue implemented earlier in the week that royally bungled URLs on the social media platform formerly known as Twitter.…