You may have seen info floating around the internet that Signal has a zero-day vulnerability that allows for remote device takeovers and the best way to mitigate it is to turn off link previews. Signal posted to Twitter that "after responsible investigation *we have no evidence that suggests this vulnerability is real* nor has any additional info been shared via our official reporting channels. We also checked with people across US Government, since the copy-paste report claimed USG as a source. Those we spoke to have no info suggesting this is a valid claim". No harm in disabling link previews as a precaution, but just goes to show how bullshit can spread quickly.
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