Facebook breached? Has this / can this happen to you?

Someone somehow managed to post a link on the wall to most, but not all of my Facebook Friends and make it look like it came from me. 
On my Facebook Friends Walls, they saw my Picture, my name, a link to: and then three random letters.  Underneath this link was the standard Facebook "Like, Comment, Share" links.  This was sent out at 11:31 pm on Saturday December 11th.
On Sunday morning, a friend of mine managed to communicate with me (on Facebook) that I had posted a link that was a virus and that I should scan and virus check my computer.  The first thing I did was to check my Facebook account and I could not see any post on my wall.  Then I signed on to Facebook under my mother's account and looked on her wall.  A post, apparently from me, was there.  After shutting down all running programs,  updated my virusscan program and then scanned my computer.  The scan found know viruses.  Then I logged back on Facebook and immediately posted a warning on my wall to alert my friends that: 1) the link attributed to me was a virus, 2) that it had not been sent by me, and 2) if you had clicked on it, to please scan your computer for viruses. Curiosity got the better of me and I tried to click on the link... Nothing happened, apparently my virus scanning / internet security program prevented me from accessing this link.
I have recently (in the last month) received e-mails from two different Facebook friends with a link to some type of money making venture.  When I tried to confirm with the friends that they had actually sent this e-mail to me, both said they had not and apparently their Facebook account or perhaps their e-mail software had been breached. Could this be somehow similar to what happened to me?
I have an unsecured internet connection, but normally that is not an issue since no one lives within range of the signal.  I normally shut off the internet connection when not in use, but forgot to Saturday evening.  Did this contribute to the "false post"?  Feeling responsible, I just spent considerable time visiting the walls of each of my friends and removing the offending link.  I noticed that this link did not show up on all my friends pages.  I can assume, with no proof, that this has something to do with their individual settings. I have modified my Facebook account, account security (in account settings) to send me an SMS message when my account is accessed by a new computer or mobile device.
Has anything like this happened to you or someone you know?  What should I have done / what can I do to prevent this from happening again?

Chris Smith CSSBB
          Sales Representative

Interested in Buying or Selling Real Estate?

  ph: 1.866.936.3500

Chay Realty Inc.,

Comment balloon 8 commentsChris Smith • December 13 2010 03:57PM
Facebook breached? Has this / can this happen to you?
Someone somehow managed to post a link on the wall to most, but not all of my Facebook Friends and make it look like it came from me. On my Facebook Friends Walls, they saw my Picture, my name, a link to: www. new-christmas. com and then three… more
Day Two of Snowmageddon
I must confess to borrowing the term "snowmageddon" from my friend Anya, who used the term yesterday referring to the same snowfall at her home in Tottenham, about six miles south of me. I saw pictures posted by my friends in the… more
Remembering this very special "Kodak Moment"..
They say that a picture is worth a thousand words… and that might very well be true, but that doesn't even begin to really capture both the memories and the emotions a picture can evoke… I took this picture of my son, Alec, waiting in line… more
No rest for the wicked-)
It is not cold outside, not really… I think the weather stations are quoting temperatures that are between -4 and -6 degrees C (which translates to something like 23 to 26 degrees Fahrenheit). But that doesn't mean that OLD MAN WINTER has not… more
Twelve Online Scams of Christmas
Every year the cyber-criminals seem to get smarter, and we have to beware of cyber-criminals phishing for our information. McAfee, a leading software and services company, has again provided us with their top twelve scams of Christmas 2010. 12)… more
"Worst" Christmas Gifts
My wife and I have Breakfast Television (a local morning show that has a great mix of news (local, national and international), the requisite weather, sports and entertainment and a blend of features that we find entertaining on in the background in… more
Send a Message from Santa!!
Portable North Pole is BACK!!! This very cool website by BELL is back in operation. You can use it to have Santa send your friends, family, co-workers or?? a message. My wife, Helen, found it for me last year just before Christmas and I had a lot… more
Toronto's 44th Annual Calvalcade of Lights
Where: Nathan Phillips Square When: November 27th, 2010, starting at 7:00 pm The celebration will begin at 7 pm with the lighting of the City of Toronto's Official Christmas tree, a concert Celebrating Forty Years of the JUNO… more
Time of Use Electrical Pricing - Off-Peak hours extended during summer
As of May 1st, 2011, the Government of Ontario will adjust Off-peak hours during the week to start at 7:00 pm rather than the current 9:00 pm. This will give Ontarians an extra 10 hours of "off-peak" pricing a week. This means that… more
Public Skating at Nathan Phillips Square
Nathan Phillips Square sits above one of the largest underground parking garages. In the square you can find, a reflecting pool that serves as a skating rink in winter months, a food and skate rental kiosk, a peace garden, and the sculpture Three… more