There’s a mystery hacker who’s been changing the wording on digital traffic signs in the city. Is it amusing? Or dangerous behavior that should be stopped?
not an isolated incident: pic.twitter.com/kVeKPTILT7
— Eli Wirtschafter (@RadioEli) September 2, 2019
This happened Tuesday. Who are the mysterious hackers? https://t.co/f4PmHEYTPX
— Berkeleyside (@berkeleyside) September 4, 2019
Ok #maketransitfree hack on California St in Berkeley today pic.twitter.com/P2zmmhdclY
— phyllis orrick (@orrickle) September 3, 2019

I noticed it on Friday evening around midnight pic.twitter.com/dbrm804Vi6
— John Vantine (@w00t) September 10, 2019
Editors’ note: This article was updated as readers sent in more hacked signs.