Scotiabank raised its PT for Meta Platforms (META.O) to $650 from $600.

The UK National Cyber Security Centre on Oct 21 warned of a serious, potentially exploitable vulnerability in the widely used PHP scripting language. As a precaution, several public agencies temporarily pulled services offline: the UK Office for Budget Responsibility took its website down, Finland suspended parts of its public government network, and the Netherlands’ cybersecurity agency temporarily disabled its site.

Iran's army commander Hatami said Iran is prepared for asymmetric warfare and has the necessary equipment.