The first thing you should do to check if your computer is safe is to test your account passwords and make sure that they are neither compromised nor weak enough that a hacker could easily be able to break in. Doing so you would also be able to figure out if anything on your computer is being shared with another person and be able to determine if that is someone you do not know and if they have indeed been able to hack into your account and computer. Another thing you can do to keep your computer safe is to update your browsers and plug-ins as updates may be able to increase security and with technology constantly evolving having an outdated browser or plugin would make it a lot easier for hackers to be able to break into your computer. A third thing you should do is to always have your firewall active as firewalls are designed with the intent of keeping hackers from being able to see you and thus break into your computer. With new technologies being created and being able to do things faster emergency response time has been able to speed up and first responders are able to help people easier now. As technology continues to evolve security is becoming more of an issue and thus newer and better security techniques like 2FA has been created to deter hackers. Wearable technology like apple watches have also made it easier to keep track of your own health. On the other hand with computers we now have a digital footprint that follows us everywhere we go no matter what we do. Hackers could be able to stop first responders from even knowing that they were needed somewhere and thus be unable to help. Hackers could also break into your wearable technology and be able to connect to everything you have from there and take whatever they want.