In December 2017, Krebs put up, and then quickly took down, a story (archived version here) claiming that a man with a Russian name could be the person who leaked NSA exploits to a group known as the Shadow Brokers.
Krebs mentioned the taking down of the article at the very end of a story he wrote about the arrest of a Vietnamese American who had pleaded guilty to taking masses of NSA material home. Comments were not allowed on this article, presumably to avoid criticism of his earlier claim.
He did not offer any reason why he had taken down his article, but it appears that he had allowed himself to be a willing vehicle for claims by a Washington DC-based security firm, InGuardians, about a man of Russian origin being behind the leak of exploits to the Shadow Brokers. In that article, he avoided citing his source for the claims until the 30th paragraph.
Krebs did not respond to a Twitter query for comment. When he was asked about the pulling of the article through posts on his blog, he resorted to personal slurs as seen below:
In March last year, Krebs was again contacted when he came under fire from users of a German image board pr0gramm.com after he revealed details about several admins and moderators in an article which claimed to identify who was behind the cryptocurrency mining service Coinhive. On that occasion, he stayed silent.
With the Wipro story, Krebs called up the company during an earnings call to ask questions. Presumably if it had been an American company, he would have thought twice about doing this.
Krebs has been contacted for comment.