T-Mobile has confirmed to Android police that it has stopped a data breach operation that may have harvested a small group of customers’ phone numbers, number of lines per account and call diagnostics statistics. Customers who may have been affected by this were notified via text message yesterday and told that the event took place in November.

The company tells us that hackers did not have access to the names associated with the account, financial data, credit card information, social security numbers, passwords, PINs or physical or email addresses.

While most of the concerns here are excluded, the call diagnostic methods – information about the client’s own network as defined by the FCC – may include call location information such as tower IDs and even fine information from your device.

In general, however, the magnitude of the impact, both in terms of severity and magnitude, appears to be relatively minimal – there are many two-bit attacks like this that we can not report – but T -Mobile has presented itself as a regular victim , because it is affected by at least one major attack annually. There was indeed another hit in March.

That said, it can be a time-consuming task to get to every possible person affected: one subscriber said yesterday they had just been warned by T-Mobile about a possible compromise that happened 9 months ago.