How safe is online banking? There is the 128-bit encryption on the wireless network, and then there is the encryption used by the HTTPS protocol. This makes things safer, but not cracker-proofed. We live in a world where there are numerous trojans, key stroke loggers, botnets, worms, viruses, etc. There are botnets now that span across millions of computers. How can anyone feel safe while making financial transactions online?