When technology becomes bane

I felt so devastated last night upon learning that a hacker accessed my Facebook (FB) and Yahoo accounts to scam my friends. The scammer chatted with my FB friends showing herself on the webcam with my baby. How could he/she do that? Maybe by stealing some photos from my Facebook or elsewhere? I don't even update it. He/she is such a skillful deceiver! He/She asked for e-load of small amount at first promising that she would send the payment in 2 days. When my friends said they could not send any e-load, she instead proposed that if they wanted to make money, she could give as much as 50% profit to their money if they could send the amount of PhP50,000 Globe and Smart e-load right away. So that amount would become PhP75,000. in just a matter of 2 days and that 75k would be sent to my friends through Western Union knowing that I'm abroad.
One of my friends who really trusts me completely believing that it was me she chatted with sent the asked amount. Yesterday, as she could no longer reach me through the given international roaming number and my FB and her link with me through Yahoo was also placed in the Ignore List, sent a comment to my blogsite. That's the time that she confirmed that it wasn't me. She now feels so stressed and so do I.
One thing I discovered about my FB account is that, anyone can change its password. It's not secured. I wanted to deactivate it but I couldn't. A prompt said, "You can log in using your old email address and password to reactivate it". But even if it's secured, for evil hackers, they can still access anything they want.
This is when technology becomes more of a bane than boon. So, beware of any identity thieves lurking in the dark to hunt their next preys! Be wary of giving out any personal information. Verify a million times before granting anything valuable. Oh, I'm now becoming paranoid to whom I interact with via cyberspace!
P.S. Please spread this information around to save the next modus operandi victims.