(Image credit: Shutterstock) Home security giant ADT revealed it was hit by a major data breach carried out by the notorious ShinyHunters extortion group earlier this month. Thanks to the data breach notification service Have I Been Pwned, though, we now know that 5.5 million individuals are affected. As reported by BleepingComputer , the hackers managed to gain unauthorized access to ADT customer and corporate data on April 20 after breaching its systems. The home security firm detected the intrusion immediately, revoked the hackers’ access, and launched an investigation into the matter. Article continues below Here’s everything you need to know about this latest breach, including what kind of personal data was stolen and the steps ADT customers should take right now to protect themselves.…