I assume it is “phone hygiene”.

My personal phone gets a scam text a month and rare calls. My work phone gets multiple texts a day and at least a couple calls a week, many scams, some from local shops I assume the previous owner of my number did business with.

I’m guessing the work number was either in a publicly facing directory (our company doesn’t do that, but maybe the previous owner) or maybe it was recklessly handed out to every random company and typed into every web form that asked. (Seems likely from the local business calls.)

I’m reminded of computer viruses. I’ve never in 20+ years of computer ownership had a virus or other malware impact my machine. I know a few people who had this happen constantly, especially in the aughts. I’m no internet saint and did the usual amount of piracy for someone my age. But clearly some people use technology differently!!