Cloud storage provider Dropbox is disputing reports in the media that it has been hacked and had some seven million user logins swiped from its accounts.
The firm has blogged its response to the reports, saying they are untrue and that two-factor authentication makes Dropbox very secure.
Dropbox explained that, while information has been posted online, it does not relate to Dropbox itself but to another party. Its suggestion is that hackers have grabbed a set of personal data and logins from another site, and are testing it out elsewhere.
"Recent news articles claiming that Dropbox was hacked aren't true. Your stuff is safe. The usernames and passwords referenced in these articles were stolen from unrelated services, not Dropbox," said a post from the company.
"Attackers then used these stolen credentials to try to log in to sites across the internet, including Dropbox. We have measures in place to detect suspicious login activity and we automatically reset passwords when it happens."
In a later update that followed the release of usernames and passwords online, the firm said that it has studied the information and found that none of it links to Dropbox servers.
"A subsequent list of usernames and passwords has been posted online," the firm said. "We've checked and these are not associated with Dropbox accounts."
Dropbox, like many others, has boosted its security in the past, and offers two-factor authentication on its services which the cloud storage firm has urged users to embrace.
"Attacks like these are one of the reasons why we strongly encourage users not to reuse passwords across services," said Dropbox security chief Anton Mityagin.
"For an added layer of security, we always recommend enabling two-step verification on your account."
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