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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30
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6answers
4k views

How safe are employee laptops in China against International corporate espionage?

I recently took a business trip to China. Our IT department told me I could not take my normal machine, and instead gave me a loaner. This loaner had MS Outlook and was linked to my normal company ...
1
vote
4answers
142 views

Do technical advice sites sometimes link to malware, and if so, how should we properly research errors? [closed]

Suppose you get an error on your PC that shows up randomly, then you do a search on the internet for the error to find out how to fix it. Typically, you will get some sites that offer a solution, but ...
3
votes
0answers
84 views

What is pseudo-encryption key vulnerability?

An organization in a related business was recently hacked. The hackers downloaded several GB worth of files with private information and posted it on the Internet. The news article states: “They ...
4
votes
4answers
522 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. ...
3
votes
1answer
47 views

Practical security for an inexperienced database developer? (HIPAA)

Hopefully my question isn't too unique to be asked here, but I didn't find anything similar after some searching. As a relatively inexperienced developer (only one large project excluding this one ...
18
votes
8answers
3k views

A destructive force can always leak information through HTTP packets. Should I bother configuring outbound rules on my firewall?

I know my way around firewalls, but I am in no way a security expert. And recently, I am wondering how to effectively configure the outbound rules of any company's firewall. For the question's sake, ...
16
votes
7answers
6k views

My IP address (with a NAS) is targeted by a hacker. What to do? Should I be worried?

I've noticed, based on the logging of my NAS, that my IP address is targeted by a hacker. I already took action by automaticly ban the IP address permanently after five unsuccesful login attemps. ...
6
votes
2answers
3k views

Anti-DoS WebSockets Best Practices

What are the best practices for thwarting DoS attacks for a WebSocket server? Is there a comprehensive site or document that can be referenced?
2
votes
3answers
109 views

Security of decompression tools

How safe is it to decompress untrusted files with unrar-free? With unzip? I'm using debian jessie. What steps can be taken to minimize the threat while extracting the file's contents?
39
votes
10answers
5k views

Why is it important to apply security best practices when the risk they protect against is very low?

Sometimes, security best practices protect you against attacks that are very improbable. In these scenarios, how do you defend the implementation of such security measures? For example, ...
17
votes
3answers
2k views

How secure is 7z encryption?

I have a text file in which I store all my bank details. I compress and encrypt it with 7-Zip using the following parameters: Compression parameters: Archive format: 7z Compression level: ...
1
vote
3answers
140 views

Spoofing random browser information to defend against fingerprinting

Tor goes the way of trying to make everyone look the same to defend against browser fingerprinting. Wouldn't a simple addon that changes/adds as much information as possible randomly in short time ...
2
votes
2answers
376 views

What are the risks of encrypting a database with a single symmetric key

An application is required to store sensitive data* on each user. Additional columns are added to the database which store cyphertext encrypted on the application server. The algorithm of choice is ...
3
votes
1answer
71 views

Defeating ROP attacks in x86

Most defense techniques against ROP revolves around randomization, such as ASLR. If I mark all regions of memory, other than the code segment, non-executable, will this defeat ROP?
2
votes
2answers
62 views

Violation of security principles?

It's clear that keyless entry fobs, smart entry cards, NFC, etc. are vulnerable to relay attacks. Suppose they were improved by limiting the period of activity, eg let them be active only when they ...
8
votes
2answers
2k views

Do any Exchange hardening guidelines recommend disabling OWA Webready? Should they?

For the fourth time in over a year, Exchange OWA has put our internal network at risk due to a remote code execution flaw that exists on the server runtime. This risk is compounded by the fact ...
-1
votes
2answers
81 views

How can I defend against a data theft attack without shutting down my server/services? [closed]

According to information I've gathered on this site, no perfect defense is possible in the area of webserver security. The underlying software and / or maintainers of the system can be exploited to ...
22
votes
7answers
3k views

When do honest people need privacy or anonymity? (e.g. they have nothing to hide) [closed]

I'm having a discussion with someone who thinks they don't need technical measures of privacy or anonymity. Common arguments against needing to care about privacy or anonymity include: Everything ...
0
votes
2answers
597 views

How to post comments on websites without being traced back

Just trying to get some general sense about the security on internet now-a-days. There are so many websites I go and comment on different things. If some comments are political and they don't like, I ...
3
votes
2answers
151 views

As a user, how can I defend myself from disclosed unpatched zero-day vulnerabilities?

In the wake of the Hacking Team breach on July 6th, 2015 [1] [2] I heard that some previously unknown zero-day exploits might surface (apparently one for Flash already has). Once these exploits ...
2
votes
1answer
93 views

Defense in depth vs single security architecture

Traditionally, we have been that defense in depth is the best practice approach if we want to secure our premises from security breach. However, I recently read about DoD's Joint information ...
22
votes
8answers
4k views

Is possible to get infected by only staying connected to the Internet (nothing else)?

I have a router and I'm the only user. I have a computer with Linux and a tablet with Windows 8.1. Because of a few problems, I had to reinstall Windows on the tablet. Since I'm a bit paranoid about ...
1
vote
1answer
257 views

Why AJAX is not used to log in?

I'm wondering why AJAX is not used to log in nor register in most of the pages and it's used PHP reloading the whole page. Is it about security, or it's just that it's not practical at all?
1
vote
2answers
102 views

Cheap and efficient strategy to protect against professional attack?

With things like NSA or state sponsored attack, it seems that no one is safe from a technical point of view. Is there any efficient method or strategy to protect against them? My guess is that ...
1
vote
1answer
184 views

Using SSH Private keys in Production environment

I have a need to scp a bunch of files from a production box to my development environment. I am a developer and have limited read access to the production machines. Instead of entering password for ...
1
vote
1answer
3k views

Nowadays, what is the difference between Cyber Security and IT Security? [closed]

Lately (and not so lately), you can hear a lot about cyber security. It is really hard to find an official description about this matter so, let's take the ISO 27032 description: "Cybersecurity” ...
0
votes
2answers
183 views

Advice - When just starting your career, what are the best certifications to eyeball? [closed]

Im just starting out in school to study Network and Info Security. I know this is the field I want to invest my time and study into. Well over 200k security jobs went unfulfilled last year. My ...
1
vote
0answers
19 views

Transaction without 3DS in some online websites is Fraud prone? [duplicate]

I use my MasterCard credit card for online transactions which uses SecureCode for preventing online frauds even though hackers knows our credit card details. I have come across many sites which is ...
4
votes
3answers
238 views

Letting users pick up where they left off…without logging in (is this bad form?)

I have a Grails app I'm working on that allows users to fill out a fairly lengthy application form. One of the requirements I've been given is to NOT require users to log in or create any sort of ...
80
votes
12answers
11k views

What is different about being targeted by a professional attacker?

It is often said that security tools such as firewalls, antivirus programs, etc. are only effective against random, untargeted attacks. If you are specifically targeted by an intentional, professional ...
10
votes
5answers
2k views

Should a website limit characters that can be entered in its fields?

I got into a (somewhat heated) discussion with my colleague today about what characters our application should accept. This was prompted by the discovery that you can enter anything in the search box ...
0
votes
2answers
100 views

Need some docs that say we shouldn't upper the string when saving it as a password [closed]

I'm trying to find on the Internet some manual, guide or policy secure about applications should not convert lower string to upper string to store as password I mean, don't make ...
21
votes
2answers
5k views

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 ...
2
votes
2answers
148 views

Which hard disk encryptions schemes are tied to the original hardware?

When using a laptop, an encrypted HD/SSD can be an important security measure. However, laptops are prone to accidents (fluid spills, dropping on the floor, etc) that may mandate some or all of the ...
13
votes
1answer
389 views

Should a server be considered compromised simply because a port was open?

Earlier today I received a notification of a security incident at Mandrill. At first I was concerned, but then after I dove into the details I became confused as to why they considered this noteworthy ...
1
vote
1answer
86 views

Why should we focus on protecting root access on a home computer?

I understand why root access should be protected in general, especially in the context of a server environment. An unknown party can essentially control everything you do on a computer remotely ...
0
votes
1answer
430 views

Recent “attack” to my server that might be using shellshock exploit

I just notice this repeated entry in nginx log: 31.184.194.114 - - [04/Mar/2015:10:29:53 +0700] "GET /cgi-bin/up.cgi HTTP/1.1" 301 178 "-" "() { :;};/usr/bin/perl -e 'print \x22Content-Type: ...
8
votes
3answers
2k views

Is there a best practice to handle vulnerability scanning attempts?

We've found a number of attempts to access non-existent pages in our IIS logs, specifically a lot of variations on phpMyAdmin URLs. My kneejerk reaction would be to block these IPs, but I have a ...
2
votes
1answer
102 views

Internal network security policy for development environment

What are the best practices for network security for an internal development environment. Besides adhering to updates, antivirus, and firewall. For instance, is it recommended to use an IDS/IPS like ...
-1
votes
1answer
85 views

Known Windows vulnerabilities vs actual exploits on Microsoft's websites?

Although some of Microsoft's servers are running on Linux, at least half is running Windows Server of some kind. I'm trying to understand how with so many unpatched and unresolved vulnerabilities in ...
2
votes
1answer
102 views

How to prevent browser from rendering malacious content if request or response is hacked

We are currently working on OWASP security fixes and we identified one attack scenario for which we are trying to figure out a possible solution: User hits a valid HTTPRequest to our application. ...
5
votes
1answer
181 views

Is there a “security fail forum / website” with lessons learned?

I have done some searching, and cannot seem to find this. Does anyone know of a "security fail forum" that lists embarrassing and / or damaging results from lack of security practices? I would like ...
7
votes
1answer
545 views

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 ...
2
votes
3answers
127 views

Security coding training best approach

To train the development team, there are various options one can take: inhouse presentation with code samples, CBTs so developers do it at their best time, instructor-led courses onsite or inhouse ...
0
votes
2answers
6k views

Trying to get rid of hackers who have access to all my devices [closed]

What is the best way to go about getting rid of hackers that have gained access to all my personal computers, (both old and recently purchased) phones, and even random computers I use to simply get ...
2
votes
2answers
155 views

Should a 2FA recovery key be stored along with a password?

Many websites give you a recovery key or a list of recovery codes that can be used in place of 2FA tokens if you lose your phone or can't access your token generator. What are the recommended ...
3
votes
4answers
337 views

How effective are password checking websites? [duplicate]

I typed the following password in howsecureismypassword.net: yummy candy yummy It said it would take 100 billion years for a personal computer to crack. Is this accurate? Even though it has English ...
1
vote
1answer
52 views

Is a government entity capable of establishing a secure virtual currency system? [closed]

After reading about BitCoins, I can't help but contemplate the idea of the a government withdrawing paper money and bringing all currency transactions digital, via a bitcoin-like method where every ...
-2
votes
2answers
450 views

Life in cybersecurity: How do I get there? [closed]

I am 17 years old and my ultimate job goal is a cyber security professional. I have been extensively studying TCP/IP, along with all other subjects in the CompTIA Network+ certification which I hope ...
7
votes
4answers
7k views

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 ...