Password Stealer Trojan naming ?

I’m sorry if this topic was in wrong forum.

A password stealer Trojan are detect by antivirus program.

some vendor use initial “PSW”
and another vendor use initial “PWS”

But why does some vendor used a different initials to naming it ?

Maybe the first one simply means PaSsWord, while the second means P■■■Word Stealer?

Basically, unless there is a definite name for a threat, different vendors are just going to call new malware anything they want. Which is why Comodo uses the unclassified malware term a lot. It just means that they’ve checked it out, and yes it’s malware. They just aren’t bothering to give it a name.