While Tenorshare itself is a legitimate software company, using keygens like the one by DFoX is a form of software piracy and is generally considered unsafe for your computer's security.
Attributed to "DFoX," a known developer within the software cracking community who produces "all-in-one" (AIO) patches and keygens. tenorshare12in1keygen updv13bydfox
Instead of using risky keygens, Tenorshare often provides safe ways to access their software at reduced costs or for free: Official Giveaways While Tenorshare itself is a legitimate software company,
: Reports show the file uses "Heavy Evasion" techniques to avoid detection by sandbox environments. Official Alternatives tenorshare12in1keygen updv13bydfox