Showing posts with label pc. Show all posts
Showing posts with label pc. Show all posts

Tuesday, September 20, 2016

It's Microsoft Calling (Not!)

   The amount of automation and detection in our world today can be scary but it can also be useful.  You can set your lights to come on as you approach your home.  You can have your phone switch to wifi when you get to the office.  And Microsoft will even call you when they detect a problem with your PC!

   OK, maybe not that last one!  As we've discussed before, this is a common scam that has now been around for a few years.

   It works like this... There are 2 basic scenarios:
  1. you get a popup on your computer telling you that "Microsoft" has detected that there is a problem with your PC, and you should call the phone number they provide, or;
  2. you get a phone call directly from "Microsoft" telling you that they have detected a problem on your PC.
   Of course, neither of these are legitimate.  Microsoft will not call you.

   This article has a recording of what one of these calls sounds like.  Here's another.

   I said PC above, but people with Macs have received these as well!

   Here's the thing about these scammer orgs...  they provide very good customer support!  That, of course, is good for them but bad for us.  It's one of the reasons that these scams work.  People are very happy to receive great customer support - it's unfortunately too rare.   So when a friendly, attentive "customer service" rep is telling someone that their computer is infected, it can be convincing.

   Typically the "customer service" rep will ask the victim to pop a web browser and type in what they tell them.  The victim's web browser is directed to a malware site that will give the attacker control of that PC.

   Why do they do this?

Tuesday, March 18, 2014

XP End of an Era or... Deja Vu All Over Again!

   Unless you just came back from time traveling, you know that Microsoft is ending support for the XP
operating system on April 8.  To be clear... April 8 is Patch Tuesday, so that will be the last set of updates for XP.  Sort of.

   XP has been one of Microsoft's most popular desktop operating systems and many organizations are dependent upon it.  Many organizations have not yet updated to Windows 7 or 8 and the clock is ticking.  I'd like to look at what that means and share a few ideas of what we can do to protect ourselves and our organizations.

   Microsoft will be stopping all patches, hotfixes and enhancements to XP after April 8.  Anti-virus signatures will continue to be made available.  This means that any vulnerabilities that are discovered or disclosed might not be fixed.  Organizations will need to figure out if they are vulnerable to any new threats and then weigh the risks associated with their options.

   There has been some speculation that online criminal organizations may be stocking up on new vulnerabilities so these can be released after the last patch date.  We can't know if this is true, but it is possible.

   So... if you are still running XP, and need to continue to run XP, what can you do?  Let's do a high-level threat analysis:

Tuesday, December 10, 2013

Password Problems Again

   So here we go again... more problems with breached passwords.  But this time there is a different wrinkle.

   By now, most of you have probably heard about the recent discovery of hackers getting around 2 million userid's and passwords to online services like Facebook, Gmail, Yahoo, LinkedIn and Twitter.  Notable on the list of sites is ADP, the payroll processor.

   It's "just" 2 million sets of ID's and passwords.  That's not really big news these days when the new record of over 152 million stolen passwords was recently set by the Adobe breach.  But there is a difference here.  For most of the big password breaches, the service provider's website or password store is hacked.  Then the encrypted password file or database is downloaded.  The attackers can take their time analyzing the encrypted data to come up with userid's and passwords.  This work is made easier because so many sites use poorly implemented encryption.  And some sites use no encryption at all.

   But that's not what happened here.

   This time the passwords were stolen from the users of the sites.  That's you and me (well... hopefully not you or me!).

Tuesday, July 23, 2013

Macs don't get viruses... right?

   It's that time of year again, when many first time college students and their parents explore that age old question... Mac or PC?


   Most schools will give one of two non-answers:
  • it's personal preference - just use what you like best, or
  • check with your major department for their requirements

   While these aren't terrible answers, they really won't help most people.  Most kids just use features of a computer like the web browser, chat client, skype and office tools, and don't really interact with the operating systems.  In fact, it's the same for many parents.
   And, most academic departments don't have specific requirements, and if the require specific software it will run on PC or Mac.  (YMMV/Your Mileage May Vary - and you should check with that academic department!).

   So, we haven't helped answer the question!  But here are criteria you shouldn't use: price (alone); "free" items included (like printers), and; don't choose a Mac just because you think it won't get malware!