Yahoo have announced yet another massive breach of their systems, this time dating back to 2013 and impacting around 1 Billion user accounts. If you had a Yahoo account in 2013 we recommend you immediately review the security guidance they have published here:
When the breach of 500 Million Yahoo accounts was announced in September, we wrote up some steps you should take as a business to respond. Yet again you should consider resetting your Yahoo account and changing your password on any other service that may be linked or where you have reused or used a similar password. It is also important to ensure that any staff within your business do the same as they may leave your business systems at risk if they come under attack.
Beyond protecting account credentials there are some other potential impacts you should be mindful of with compromises of this magnitude.Read More