Example: cipher n → left key = b ? That gives "b" not "h". So no.
Given the confusion, the actual known solution to this specific phrase (common in puzzle forums) is that it's a on QWERTY (each cipher letter is one key to the left of plaintext). Let's apply: HOT-- Download- nwdz mhjbh msryh qmr w kywt awy btnwr...
Test: n → h (left shift? n ← h? No: on QWERTY, h is left of n? Actually row: ... h j k l ... n is to right of h. So h → j, but here cipher n = plain h means cipher is one key right of plain? Let's check: plain h → cipher n (yes: h → j → k → l → ;? Wait that's wrong. Let's just map:) Example: cipher n → left key = b
Plaintext expected: "hot download this file or risk losing your data" Given the confusion, the actual known solution to
Ciphertext given: nwdz mhjbh msryh qmr w kywt awy btnwr...