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comment Why does changing physical router not warn of possible man in the middle attack?
@NickW Some clients use the MAC of the AP as a fingerprint. I know something I own does this and it's more annoying than anything; roaming from one AP to another produces error messages.
comment Why isn't there a Global Root for SSL?
Verisign was hacked in 2010. Comodo was too. If you're big enough, the pain of removing your root cert lets you get away with murder. If you're smaller, like DigiNotar, you get hung out to dry.
comment Anonymous website
If you aren't an expert, you're about 99.9999% likely to get caught (I'd only give the best experts a 50:50 chance). So either don't do it or accept that you will be caught.
comment Do any Exchange hardening guidelines recommend disabling OWA Webready? Should they?
@D3C4FF To be clear, the problem is not where OWA is accessable from. Requiring the VPN does not fix this issue. The issue is that a specially crafted e-mail, accessed via OWA can compromise the server. Technically you could access OWA from the server itself and no remote computer would be involved at all.
comment AV boot disks and Truecrypt encrypted drives
Not sure if it's what you want, but you can make a WinPE disk that can do both BitLocker (native to WinPE anyway) and MS-ERT. Bonus points for snagging a fresh copy of ERT before scanning. I can post a "guide" if you're interested.
comment Is it a bad idea for a firewall to block ICMP?
It's one of those "Unless you're a networking god and really know what you're doing, don't mess with it" sort of things.
comment Dealing with excessive “Carding” attempts
I'd really discourage the "authentication mechanism" idea, it's 2012, way past the time when "site accounts" should have been dumped outright. CAPTACHA is an excellent idea, as is locking out users who fail it multiple times for a reasonable period of time.
comment When changing a password, does it have to be completely different?
@curiousguy salted MD5 hashes can be cracked within an hour with the right computer (and it's not a supercomputer). It's trivial to find a collision these days because the computational power of computers has simply increased that much. SHA1 is better, by several orders of magnitude; though most cryptographers agree SHA1 is soft-broken as a collision can be found in 2^51 operations (~130 compute-days with a modern OpenCL card). Some MD5 rainbow tables are awfully complete, your password having "entropy" doesn't mean it doesn't collide with a simpler password either.
comment When changing a password, does it have to be completely different?
The "problem" with this answer is that it assumes that only the well hashed password would ever be leaked. If that's the case, then yes this answer is correct. Leaks from Yahoo and others however have shown that well hashed passwords are much too rare. Also, if they're using a poor hash, like MD5, then it's easily reversed via Rainbow Table. Salt is a critical deterrent to rainbow tables, but that's getting into more depth than is necessary for the Answer. TLDR: Your answer relies on too many assumptions to be considered correct security advice.
comment SIEM-AlienVault; Risk Metrics, Assets, and basics
@bubbl35 I don't have any myself, it just wasn't evident from your Question that you had in fact read any. My apologies for asking the obvious. This is a security site regardless, and application configuration questions are off-topic here. Our sister sites Server Fault handles network administration and Super User for application configuration may be of interest; but you'll definitely want to contact the vendor first as (forgive the simplification) "where do I start" questions are generally going to be off-topic on all our sites.
comment SIEM-AlienVault; Risk Metrics, Assets, and basics
Have you tried reading the friendly manual?
comment Security considerations in providing VPN access to non-company issued computers
This is the exact same policy we have. If it doesn't belong to us, it doesn't connect, except Terminal Services (and even that is locked down tight).
comment Two SSIDs on same Access point- not good?
If you have to ask, you probably want to hire someone who really knows their stuff to setup your stuff. It's somewhat easy to muck up if you've never dealt with vLAN specific SSIDs and such before. But yes it's possible and common as Rory says.
comment Policy requirements of Sarbanes-Oxley (SOX)
+1 Possibly related: HIPPA suffers from the same fear, uncertainty, and doubt; because the law is vaguely written at best and most people do not actually know the law very well (or at all).
comment What are the pros and cons of site wide SSL (https)?
@Steve +1, SSL guarantee Encryption. Typically encryption is negotiated, but technically it's not required; an SSL session can be negotiated with authentication only.