Floridians are getting smarter about the most common tricks used by scammers. Cell-phone owners are now familiar with the concept of “spoofing,” where caller ID information is hacked to make it appear that a call is coming from a local source or a trusted business. And many are inured to the relentless phone calls from people pretending to sell car warranties, remotely fix computers that aren’t broken and “resolve” problems with Social Security. Online, many have learned to mistrust ads that promise sought-after goods for unbelievably low prices, or be wary of friend requests on social media that ape the profiles of real people.