Defense is the use of security countermeasures to protect the integrity of the information assets in an IT system and/or infrastructure.

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Are there any security issues with importing mail via POP/IMAP?

I'd want to design import mail functionality for an email provider. The process is: user enters email and password for another service at my site and then site accesses another email provider and ...
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3answers
415 views

How would one make a network resistant to the unknown?

I play in a game which includes normal risks, but also a wide range of supernatural powers which could affect the security of a network. These may be as prosaic as a retrieving data directly from a ...
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What are some good ways to secure personal computers

I see that many topics here are related to securing data, equipment at an enterprise level. Good advice includes stuff like blocking all unused ports, allowing only whitelisted traffic and installing ...
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170 views

What does Bluffdale mean for privacy?

I posted a question related to tracing webserver attacks over here and the responses got me google-ing. My understanding has always been that privacy is dead and that essentially there's always ...
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171 views

A way to secure hyperlinks on websites

How do you think could we secure hyperlinks pasted by users on website's forums, comments, blogs against bad links/leading to malware etc.? I thought about google safe browsing, projecthoneypot. Did ...
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2answers
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How to use attack trees and attack graphs

I am trying to understand how attack trees\graphs can be used in the security process. I read a lot of papers presenting the topic and how this reppresentation can be useful, but I really don't ...
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3answers
361 views

What to do when asked for a weak password

The guys who made the security for my country's state bank are completely nuts in all senses. Their internet banking password must be between 8 and 10 characters, and contain only letters and digits. ...
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957 views

Hadoop security, isolation, and hardening

This is a multiple part question, which all really come back to the main question: How best to protect data in a Hadoop (wikipedia) cluster. (Current version, vanilla main-branch distro - ...
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5answers
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Is the US military secret network SIPRNet physically or cryptographicaly separated/secured?

I've read the Wikipedia articles on SIPRNet and NIPRNet (which are pretty light on details) and they are supposed to be considered separate. At the network level, are they technologically ...
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Privilege Escalation Ubuntu

I am trying to learn how an attacker can escalate privileges in Ubuntu 10.04. I have heard that this can be done but no one has ever said how to do it. The best defense is knowing how it is done and ...
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Guidance for implementors of HTTPS-only sites (Server side)

The recent trend in HTTPS attacks is to attack the HTTP protocol. What should I do to increase my site's security if the only protocol I want is HTTPS? Some easy to implement ideas are Implement ...
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Why do law-abiding citizens need strong security?

The layman's counter-argument I run in to for any complaint about inadequate security seems to always take the form: You don't need security if you aren't doing something illegal. This kind of ...
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Randomizing MAC addresses on bootup

Since it is possible to set custom MAC addresses, wouldn't it make sense to have a new one as often as possible/convenient (i.e. on bootup)? It would seem that is useful to both attacker and victim ...
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Is there something similar to DNSBL's for protecting against forceful browsing?

I want to protect a couple of Apache webservers against forceful browsing. Lately there have been multiple scans querying for non-existent applications on them like phpMyAdmin, notably known for their ...
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3answers
2k views

NoScript: How to determine which sites/scripts to whitelist?

NoScript is a great plug-in, both for security and for ad blocking. However, I've found it's not always easy to figure out what scripts need to be permitted on certain pages, to be able to use the ...
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2answers
3k views

Recommend Keylogger for Ubuntu?

I purchased a new laptop recently, and I'm working on hardening it. Specifically, I'm interested in increasing my chances of recovering the machine in the event that it's ever stolen. The system ...
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4answers
481 views

What kind of IT security applications do you guys run on your laptop/desktop?

I know a lot of people run different security applications on their laptops/desktops. I use Little Snitch on my Macbook Pro. I like to know where my applications are sending data and where I am ...
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753 views

Linux wireless hacking book

I am looking for recommendations on a good wireless hacking book. I would like something more focused towards the defensive, but a healthy knowledge of both would be great. I would also need it to go ...
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4k views

Options when defending against SSLstrip?

I'm wondering, does anyone have any suggestions to defend against SSLstrip particularly?