Had to finish last session after holiday.Thank you for archive! Very informative (and scary) course.
@lynbr2(2:45:42). Agree. In my limited experience, management often looks at initial hardware and installation costs and gives less thought (and budget) to the future software and manpower required to maintain a network.
@dtucky - All things considered, DHCP vs. static IP, in terms of security trade-off is not that significant. It only prevents someone easily getting an IP once they are physically on your network and even with static IP assignment, the hacker can figure out a valid IP. It's just another "layer" of added security.
@huntwork - block the IP addresses in question. (i.e. IP Black listing). Not much you can do legally do to the vast caveates with cyber security. Sometimes there is legal recourse but it's so difficult to achieve.
Range of RFID sniffers depends on the power they are given. Higher powered sniffers can read from longer ranges. Yes they can read through clothing. Metel lined wallets and sleeves are recommended as a counter.
RFID is at the doors of every depatment clothing store. They absolutely can see through layers of clothing put on in the try-out booth. There are specially lined bags that shoplifters use to hide the tags from the sniffers at the door.
No IT group, we used VIPRE, common sense and a 3rd prty contractor to protect our systems ... no real IT security or IT department ... needless to say we were vulnerable and got hit a few times since we didn't have any experts in IT Sec... thansk for the repsentation it was awesome!
This is a great question because DHCP vs. IP security have security trade-offs. DHCP might be easier to manage, but anyone can plug in and get an address. That being said, static IP addresses can be a nightmare to manage in larger orgs. It should not cost anything when using the RFC reserved addresses such as 10.x.x.x, 192.168.x.x, and 172.16.x.x.... those are inside IP addresses that are free to use internally
dtucky asked: I heard you say that DHCP should be avoided in favor of fixed IP addresses (audio was cutting out a bit but that's what I think I heard). In your experience, is this followed in practice today for devices on SCADA networks? The limited feedback I hear in my job is that DHCP support in devices is desired, to help lower installation costs. Do you see this as a significant security concern?
I heard you say that DHCP should be avoided in favor of fixed IP addresses (audio was cutting out a bit but that's what I think I heard). In your experience, is this followed in practice today for devices on SCADA networks? The limited feedback I hear in my job is that DHCP support in devices is desired, to help lower installation costs. Do you see this as a significant security concern?
my systems are not currently connected, and have a proprietary programming interface (no USB, no Windows, No Linux etc.) But I am looking forward to possible future connection strategies, and what is involved
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Getting slides. When you call for product support, remember the voice that says: "This call may be recorded for quality assurance?" That's your attack vulnerability. The worm enters the audio recording and the help desk is attacked.
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Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.