of the three vs of all three - English Language Usage Stack Exchange Both are correct You would usually use "A is the oldest of the three" if you were talking about three people from a larger group e g three girls who have two brothers, while you would use "A is the oldest of all three" if there were only three in the group e g three girls with no brothers
D-Link warns of new RCE flaws in end-of-life DIR-878 routers D-Link is warning of three remotely exploitable command execution vulnerabilities that affect all models and hardware revisions of its DIR-878 router, which has reached end-of-service but is still