Companies such as Facebook, Google and PayPal are pushing for widespread use of a new technical specification, DMARC, that could make it harder for phishers to reach their victims.
A common problem with email is that it is very easy to spoof the "from" address, making it difficult for an average user to know if an email is really from the domain it purports to be from.
How do you know that email is from a legitimate source and not some scammer hoping to steal your personal information? It's a problem with which some of the biggest tech companies still struggle, and they are now joining forces to fight the problem.