Speculative memory side-channel attacks are security vulnerabilities in computers for which no efficient solutions have been found. Existing solutions only address specific security threats without solving the underlying issue. Speculative side-channel attacks exploit a fundamental functionality in microprocessors to expose security vulnerabilities. The first such security threats, Meltdown and Spectre, were announced last year, but…
Ocean Life in 3D: Mapping Phytoplankton with a Smart AUV
Phytoplankton form the base of the marine food chain but are notoriously difficult for scientists to account for — a little like trying to identify and count motes of dust in the air. A truly independent underwater vehicle shows it can do the job. Trygve Olav Fossum watched an orange, torpedo-shaped instrument slide off the…