ProtonMail under fire over data handover
The Swiss company sells itself on its privacy features, promising to let uses "take control" of their personal data.
But the company has now said it had been legally obliged to collect data from an account which is said to be linked to a “climate activist" arrested by French police.
The news also comes as world-wide-web inventor, Sir Tim Berners-Lee, joins the company's advisory board.
End-to-end encryption vow
In a press release announcing his appointment, Sir Tim said: "I am a firm supporter of privacy - and Proton's values, to give people control of their data, are closely aligned to my vision of the web at its full potential."
ProtonMail's website says its encrypted emails "cannot be shared with third parties".
It also says as well as offering end-to-end encryption, it did not, by default, keep "any IP [Internet Protocol] logs which can be linked to your anonymous email account".
But some users felt it had failed to live up to that commitment. Now ProtonMail has removed it from the front page of its website, which it said it would update to clarify its obligations "in cases of criminal prosecution - and we apologise if this was not clear".
Order for data classed as ‘serious crime'
In a blog, ProtonMail said it had received a "legally binding" order from Swiss authorities to collect data. It added it had been unaware the targeted user was a climate activist.
The statement went on: "We only know that the order for data from the Swiss government came through channels typically reserved for serious crime".
The company says it has always been transparent that while it does not ordinarily keep logs, it can be required to record IP data linked to an account.
And internet archives show a section of its website, The Proton Mail Threat Model, had previously said: "The internet is generally not anonymous - and if you are breaking Swiss law, a law-abiding company such as ProtonMail can be legally compelled to log your IP address."
ProtonMail also publishes reports of the requests for information it receives.
Last year, it received more than 3,500 requests for assistance from Swiss authorities - compared with just 13 in 2017.
The company said it stood with activists and suggested those seeking anonymity also use The Onion Router (Tor) network, which hides users’ IP addresses under several layers of security.
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