Thingiverse suffers breach of 228,000 email addresses • The Register | #microsoft | #hacking | #cybersecurity

Thingiverse, a site that hosts free-to-use 3D printer designs, has suffered a data breach – and at least 228,000 unlucky users’ email addresses have been circulating on black-hat crime forums.

News of the breach came from Have I Been Pwned (HIBP), whose maintainer Troy Hunt uploaded the 228,000 breached email addresses to the site after being tipped off to their circulation on the forums.

Hunt claimed on Twitter that in excess of two million addresses were in the breach. He qualified that by saying the majority were email addresses that appeared to be generated by Thingiverse itself, judging from their format: webdev+$username@makerbot[.]com.

HIBP’s maintainer also claimed that some of the data included poorly encrypted passwords: one he highlighted was an unsalted SHA-1 hash which resolved to the password “test123”.

Thingiverse is owned by 3D printing firm Makerbot, last seen in these pages back in 2015 when it was making staff redundant after failing to meet “ambitious goals”.

Makerbot was less than responsive to his private overtures, Hunt claimed on Twitter, eventually forcing him to go public in the hope of convincing someone that the source of the breach ought to be closed off.

We have asked Brooklyn-based Makerbot for comment on Hunt’s observations, which stretch for a number of tweets that can be read in full by clicking the one above. The company does not appear to have publicly acknowledged the breach so far.

Breach disclosure is sometimes a difficult topic. Earlier this week El Reg reported on the case of a company that asked a researcher making a responsible disclosure to not contact them again. In that case the researcher had been trying to warn the firm that a Laravel debug page was exposing the username and password for a database – quite concerning given that Schools Marketing Company Ltd claimed to hold the details of a million teachers and school admin personnel.

Earlier this year a fraught disclosure attempt by a techie who formerly worked with an open source org resulted in the police being called and a High Court lawsuit being threatened, all because of misunderstandings.

Sometimes, however, some companies just don’t want to hear bad news – which makes it all the more important to get through to them. ®

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