People still use Tiger to this day, so I think you have time.
Does anyone know how long Snow Leopard will be supported with security updates?
What kind of precautions should be taken if I continue to use it after support ends? Will it still be safe to use?
Thanks in advance
It is already unsupported.
Fixed that for you (emphasis mine)Doesn't mean its unsafe or renders it unable to perform any kind of task.
Plus, I believe its the most stable OSX up to date(after Tiger).