"Triggering" means causing someone to feel a strong emotional or psychological reaction, often as a result of a sensitive topic or past traumatic experience. Full definition
As a security device, it's not that great — I get lots of unwanted video of trucks going by triggered by the motion sensor, and it doesn't have night vision. (thewirecutter.com)
Their set points of trigger for anger or any other negative emotions is high. (raisefrequency.com)
Its rare that great companies go on sale and so, had to pull trigger. (race2retirement.com)