On the police count the cases sit in a few districts, and almost all of them are mobile. Of 3,424 cases in 2025, 2,892 were a transaction by mobile phone, 336 were a transfer from a bank and 87 were an ATM withdrawal. Temeke recorded 693 of the mobile cases, Kinondoni 451 and Ilala 182, and those three Dar es Salaam districts together are 1,484 cases. Dodoma's mobile column is 244. The largest sums are not all in Dar es Salaam: Mwanza shows TZS 619 million across 160 cases, Temeke TZS 512 million across 808 cases, and Tanga TZS 505 million.
Attempts recorded by the telecoms regulator, a different count from a completed police case, cluster elsewhere. In the quarter to December 2025, Rukwa recorded 3,444 and Morogoro 3,105, and Kilombero district alone was 2,740, while Dar es Salaam was 640. Most handsets are basic phones. The central bank, citing the regulator, puts feature phones at 59.37 million, a penetration of 87.11 percent, against 28.50 million smartphones.
In a study of digital finance users, attempts arrived by phone call or by text, and many callers posed as the financial firm. The usual lines were to reverse a payment, to help a relative said to be in need, or to collect free money. Rural consumers and older adults in that study reported more attempts, and the study found no significant difference between women and men. A further route, written into the SIM rules of January 2025, is a line registered in someone else's name, which the operator must stop.

