The so-called free UFIDA t6 or U8 software refers to program software. There is no difference between genuine and pirated software. The difference lies in whether there is a dongle (something like a USB flash drive). The program can be downloaded at will, but the dongle has to pay. The so-called software price is actually the price of a dongle. No encryption dog can only be a trial version, which can be used for 3 months or 30 days. Many small companies specialize in selling simulated encryption dogs (usually called cracked versions), which are very unstable and have no after-sales service. According to my experience, the 8. 1 1 version is cracked well (XP needs special settings), and because the version is earlier, UFIDA doesn't care much about being pirated.