workbench access issue "this app is blocked by Transaction Security"

Question

some of my colleagues have issue with accessing to workbench. When they try to login they receive below error:

app_blocked: this app is blocked by Transaction Security

Is it SalesForce account issue?

Answer 1

Apparently, there is something called Enhanced Transaction Security. Here's the Salesforce documentation for it. I had not heard of this before your question.

I guess your admin/company prevents access to certain features for certain users.