0
votes
2answers
130 views

How to find whether a site uses SET

How could I know whether the eCommerce site I use uses SET (Secure Electronic Transaction). I know SET is a standard. But I see only an SSL connection
5
votes
1answer
182 views

How can a new website create trust with users?

Earlier I asked a question on how to authenticate business identities, now I am wondering on the other side (the user side). There is also How do I choose whether to trust a particular website? How ...
0
votes
2answers
227 views

Verifying users location & authenticity

I am builduing a business to business website, and users are able to sign up with a personal profile and create a business (like linkedin). I need to verify the following: Business Name ...
4
votes
4answers
4k views

Using SYN cookies to perform a DOS attack

In my software security class, we had this question: You are the system administrator for a provider that owns a large network (e.g., at least 64,000 IP addresses). Show how you can use SYN ...
5
votes
3answers
390 views

What fraction of web sites are vulnerable?

It is known that security vulnerabilities are common on the web: many web sites are vulnerable. Is there any data on what fraction of web sites are vulnerable, and what fraction are secure?
6
votes
2answers
369 views

What fraction of vulnerabilities does black-box pentesting find?

Black-box penetration testing is one to check a web application for vulnerabilities. It can find some vulnerabilities, but not all. What fraction of vulnerabilities does black-box pentesting find, ...
25
votes
6answers
6k views

How can I prevent tracking by ETAGs?

An ETAG is a HTTP header that is sent-behind-the-scenes between a web browser and an web server. This value is intended to control how long a particular file is cached on the client side. There is ...
7
votes
1answer
109 views

Mitigating risk from electronic payments

When attempting to sell a product online (for instance, on craigslist) there is a very good chance you will be the target of a social engineer; this is especially true when you are selling high-value ...
6
votes
2answers
2k views

Can a Patient's Name, Birth Date, and Study date be sent in a plain text email to a referring doc?

I participate in a mailing list where the following question was asked, without satisfactory feedback, and am interested in the correct answer. Several referring physicians have requested that an ...
80
votes
8answers
20k views

Why would someone trust DuckDuckGo or other providers with a similar privacy policy?

DuckDuckGo is a search engine that claims it will not share your results with others. Many of my skeptical coworkers think it may be a scam. Is there any proof that any web search engine will ...
34
votes
5answers
54k views

How to trace a (mobile) phone?

Even since growing up, I've watched films in which the "bad guy" is repeatedly tracked down when they call the police or FBI or police force de jour. They always have "about 30 seconds". Regardless ...
2
votes
3answers
352 views

Securing dropdown boxes

I have been creating selection boxes for years, yet I never knew you could modified it with firebug and submit them with nonpermitted values, of course this wouldn't happened if the code was secured. ...
13
votes
5answers
438 views

I need ideas for blocking a single malevolent user

Let me throw out this problem I'm having to some of my technical peeps and see if you guys have any new suggestions: We have a website that sends text messages and voice mails for our clients. ...
3
votes
1answer
3k views

Please explain Time-step in Time-Based One-Time Password Algorithm

I am studying about OTPs (One Time Passwords). I have gone through all the methods: HOTP (HMAC-based One Time Password), TOTP (Time-based One Time Password) I have no issues with HOTP. But according ...
1
vote
3answers
170 views

How to reverse the communication for security

I have the following use case - There are two networks - internal network where the application server is deployed and has no internet access and external network that is accessible from internet but ...
3
votes
1answer
121 views

What security features and qualifications should we look for in an online backup provider?

What security features and qualifications should we look for in an online backup provider for an Internet-exposed web server storing sensitive data? In the backups themselves - encryption type, ...
6
votes
7answers
14k views

Is a longer WiFi password more secure?

Today I had to type the same password to connect to a WPA2-secured WiFi network several times, and got really annoyed with the length of the password. Especially since it is just a phrase repeated ...
5
votes
5answers
618 views

What are all of the issues with storing a cleartext password?

I know, I know, cleartext passwords are terrible and you should always store a hash! However, I'm interested in all of the issues with storing cleartext passwords so I can make a reasonably secure ...
5
votes
1answer
254 views

What issues might exist with TLS-OBC's emulation of Browser Certificates?

TLS-OBC is an RFC proposal that increases SSL/TLS security by using certificates on both ends of the TLS connection. What's special here is that the client is permitted to dynamically create a local, ...
2
votes
3answers
5k views

Intercept data sent via bluetooth

I am trying to re-write a closed-source application, originally deployed on mobile devices, that lets you command and control a certain type of mechanical robots via bluetooth. The new application I ...
5
votes
2answers
8k views

How can I detect/withstand DNS amplification attack?

I am a developer, and I am trying to get an insight into what could I do to enable my application to withstand a DNS amplification kind of attacks. Would such prevention methods help against DOS type ...
3
votes
3answers
522 views

Wireless security attack techniques

Before I ask for some advice, please don't assume I'm a script kiddie or such. This is for one of my wireless security class (CSS 1015). It's a Saturday class and only 6 students are in the class ...
5
votes
4answers
4k views

TrueCrypt -vs- MacOS encrypted sparse image - equally secure? Other alternatives?

I'm currently trying to find my personal best solution for storing passwords and other sensible data. Recently I've used 1Password on iPhone and Mac but I'm not really satisfied with its predefined ...
3
votes
3answers
25k views

Why did secureserver.net (godaddy) access my gmail account? [closed]

Why did secureserver.net (godaddy) access my gmail account? One day later...gmail reports suspicious activity...really? So...Why did secureserver.net (godaddy) access my gmail account? ...
2
votes
2answers
807 views

up2date tools for security audit linux / centos

I'm setting up a new CentOS 6 server and am looking into some security audit tools to validate my configuration and to point out weak spots in the server. There are a lot of non up2date tools out ...
1
vote
2answers
180 views

SSL/TLS Certificate Authority supply policy

I would like to ask for recommendations regarding the following issue: As a company with a number of customers worldwide we supply our product to many different sites. We need to shape our policy ...
10
votes
3answers
43k views

Can a hacker sniff others' network data over a wireless connection?

Provided that the hacker knows the WiFi password if any (WEP or WPA), is he capable of sniffing network data of other hosts connected to the same access point?
26
votes
5answers
2k views

Why would malware try to remove other malware?

Recently my php-based website got infected with malware (probably by a stolen ftp password). Basically, every 30 minutes a file frame_cleaner_php.php was uploaded, a HTTP-GET was done on it to execute ...
48
votes
4answers
3k views

What is the point of gibberish spam

I fairly often happen across forums spammed with messages such as: Arugula (Eruca sativa) is an quarterly green, pretended or roquette. It's been Traditional times, overclever 20 flat has be ...
10
votes
2answers
416 views

How do you visit a link without risking your computer?

I got a link from: http //61.19.247./~naowit/dustin.html (removed the last digits so you don't accidentally click it! (they were 192)), which was masked as a youtube.com link via email. Now I'm not ...
4
votes
2answers
264 views

self-signed certs that aren't the final certificates in the path

The X.509 spec makes frequent statements like this: (b) If certificate i is self-issued and it is not the final certificate in the path, skip this step for certificate i. How can you have ...
8
votes
2answers
877 views

X.509 certificate policies question

I asked another question about certificate policy mappings. This is a different issue. This is about Certificate Policies. To quote from the X.509 RFC: In an end entity certificate, these ...
2
votes
1answer
707 views

X.509 certificate policy mapping question

So I'm a little confused how X.509 certificate policy mappings work. So let's say the following depicts my cert chain: root CA ---> intermediary CA ---> client cert Would the root CA have a ...
0
votes
1answer
163 views

What terms should I use to define security assessment work? [duplicate]

Possible Duplicate: What is the difference between a penetration test and a vulnerability assessment? I am tasked with hiring a consultant to do an analysis of our infrastructure security ...
5
votes
2answers
716 views

Combining capability-based access control with SAML

I have been looking into various research on identity, PKI and access control trying to boil it down to a simplified methodology for IAM (Identity & Access Management). One thing which pops up in ...
4
votes
3answers
9k views

What is a good email site that doesn't mine your personal data? [closed]

I am becoming less and less ok with Google and Facebook collecting data on me based on my online activities and then selling that to companies. Is there a good email service out there that respects ...
7
votes
1answer
12k views

Is there a sms authentication that works like 10minutemail? [closed]

I remember reading on this site a user recommending 10minutemail.com as a way to register or give email address to non-trusted websites. Is there any similar site for disposable phone number for ...
6
votes
2answers
2k views

Is e-mail a direct vector for XSS

I'm curious if there is a way to execute XSS via email. I am not talking about using e-mail as a way to deliver a link that has reflected XSS in it. I'm talking about sending an email from ...
12
votes
2answers
5k views

Available Resources for Securing RHEL 6

Some in our infrastructure group want to upgrade to start taking advantage of the new features in RHEL 6. In the past, I have relied on the NSA Guide to secure RHEL 5 and CentOS 5 installations. I ...
5
votes
2answers
285 views

Securing data on laptop's hdd

I was wondering which is the best way to secure/encrypt data in the hard disk on a laptop that runs Ubuntu Oneiric? Setting LVM encryption? I am mostly concerned about having my laptop lost or what ...
8
votes
3answers
1k views

Is a mobile app more secure for mobile use than the “normal” website?

An untrained end user who uses a mobile web browser is vulnerable to phishing and can't easily verify the the authenticity (or security) of a website among other issues. Also, it is very easy to ...
1
vote
3answers
178 views

Smartphone SSH clients with shared user

I am writing an application for smartphones to provide very limited SSH usage. The user cannot perform arbitrary actions when logged in. They can run a specific script(s) only. For various reasons ...
44
votes
5answers
4k views

Is it safe to install malware in a VM

Is it safe to install malware in virtual machines? I would like to investigate malware, but I don't want to infect my own computer. Can I install the malware in a VMWare VM, maybe even without ...
3
votes
1answer
266 views

How secure is to store encryption keys or SSH Keys on LPAR?

I want to store SSH keys (used to connect to some devices that have sensitive data) and the encryption/decryption keys of a database application. They will be inside a LPAR (logical partition) in our ...
30
votes
6answers
23k views

SSL with GET and POST

I'm pretty new to security, so forgive my basic question, but does SSL encrypt POST requests but not GET requests? For instance, if I have two requests GET: ...
18
votes
5answers
3k views

How does preventing automatic download of pictures help to protect my privacy?

When viewing some emails in Microsoft Outlook, if the sender has included images, I get the following option appear at the top of the email: "To help protect your privacy, Outlook prevented ...
13
votes
2answers
1k views

Protection of Keys/Passwords on Virtual Hardware (XEN, KVM, VMWare, etc.)

Is there any reasonable way to secure data on virtual hardware? What I mean by "virtual hardware" is the various hosted systems that one can rent from various online hosters, that run on top of XEN, ...
5
votes
3answers
648 views

Are there security (esp. privacy) benefits to deleting cookies?

As the title says, I'm wondering if there are any security/privacy benefits to managing cookies - that is, managing by deleting cookies you don't want or need. I deleted all my cookies about a week ...
11
votes
2answers
1k views

Interpolique: transparently preventing SQL Injection and XSS with base64 encoding, what happened?

For the keynote at The Next HOPE a couple of years ago, Dan Kaminsky unveiled Interpolique (the talk is really fun btw). The problem he raised was how to defend against injection attacks, including ...
3
votes
2answers
1k views

Is it less secure to use OpenDNS for banking accounts, SSH, Adsense account?

I have one WiFi connection in my house which I use for my iPad, phone and computers. I want to block adult sites, time consuming sites for every device that use the WiFi connection. So I came across ...

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