VLAN Hopping Defeats Segmentation

When we set up a Network we segment the network. The firewall protects the inside network, and the inside network critical systems are separated from the rest of the devices. Also for compliance reasons one needs to segment networks.   So the hacker wants to see all the computers… (how?) VLAN hopping. http://www.blackhat.com/presentations/bh-usa-02/bh-us-02-convery-switches.pdf This is … Read more

You Don’t Understand Hackers or Computers? Hackers Will Still Hack You

Yes we(humans) are Risk seeking  with losses, and risk averse with gains. https://www.schneier.com/essays/archives/2008/01/the_psychology_of_se.html “Security is a tradeoff,” Schneier said, speaking to a packed audience at his RSA session. “What are you getting for what you’re giving up? Whether you make that tradeoff consciously or not, there is one.” You think that your computers are not … Read more

We are Hacked – Firewall Useless – Now What?

Why did we get hacked?  Is a common refrain after a breach. Thousands of businesses got hacked last year (and this year) as in my previous post: http://oversitesentry.com/analyzing-data-breaches-can-we-tolerate-status-quo/ We believe in our technologies, in automation in firewalls There are many aspects of potential weakness – and all weaknesses will be taken advantage of. The only way … Read more

Its not that we don’t care about Security

Does this sound familiar? My company does what it can with security and is compliant, we have no breaches so far.   The problem is that the security team knows we can get breached, in fact we likely already have. But fortunately nothing has been overtly accomplished (as far as we can tell) by the … Read more