(MIT News: Cambridge, MA) -- Today, most web browsers have private-browsing modes, in which they temporarily desist from recording the user’s browsing history.

But data accessed during private browsing sessions can still end up tucked away in a computer’s memory, where a sufficiently motivated attacker could retrieve it.

This week, at the Network and Distributed Systems Security Symposium, researchers from MIT’s Computer Science and Artificial Intelligence Laboratory (CSAIL) and Harvard University presented a paper describing a new system, dubbed Veil, that makes private browsing more private.

Veil would provide added protections to people using shared computers in offices, hotel business centers, or university computing centers, and it can be used in conjunction with existing private-browsing systems and with anonymity networks such as Tor, which was designed to protect the identity of web users living under repressive regimes.

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