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126
votes
8answers
15k views

Are “man in the middle” attacks extremely rare?

In "Some thoughts on the iPhone contact list controversy and app security", cdixon blog Chris Dixon makes a statement about web security Many commentators have suggested that a primary security ...
16
votes
2answers
635 views

What statistics can be used to identify pseudorandom data?

I'm working on some code that attempts to identify files whose contents appear to be "random". As such, I'm looking for statistical measures that can be used to identify such randomness. I've ...
14
votes
2answers
3k views

How many passwords does the average user know?

Looking for research on the count and complexity of passwords that an average user is actively using. Note: Also, just to be clear, by research, this is not a request for you to respond with an ...
11
votes
5answers
1k views

Where can I find statistics on security breaches?

I am putting together a security presentation, and I would like statistics on the occurrence of and damages from security breaches. Does anyone know of a reliable, recently-updated source?
7
votes
1answer
4k views

Average number of exploitable bugs per thousand lines of code?

Over the years I've heard various estimates for the average number of exploitable bugs per thousand lines of code, a common figure being one exploitable bug per thousand lines of code. A Google search ...
6
votes
2answers
407 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, ...
5
votes
3answers
451 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?
5
votes
2answers
388 views

Average time before a malware gets detected in the world

I am actually working on a scolar presentation about Careto malware. I was really impressed by the time it took to discover it (at least 6 years, according to some compilation stamps), so to improve ...
4
votes
4answers
336 views

how to check for duplicate passwords

Is it possible to check if like 100 people are using the same pasword? without risking anyones password getting out? I heard google does this, not allowing the user to set a password 1000 people are ...
3
votes
1answer
64 views

How to evaluate the security level of session ID generation?

For a few weeks we observed a collision in session ID generation, resulting in two operators independently connected to a test web application sharing the same session. We investigated the issue and ...
3
votes
0answers
79 views

Is there a benefit in measuring randomness? How would it be done?

Is there any benefit in determining how random a given file, stream, signal is? I guess this would be useful to determine If something is (poorly) encrypted To verify the proper encryption of a ...
2
votes
1answer
856 views

How to identify call stats about 2/3/4G users in a room?

If someone can please provide some advice about the following problem I am trying to solve it will be great. Scenario: A standard office room, with (say) a couple of people in it What I want to find: ...
2
votes
2answers
223 views

What fraction of software bugs are vulnerabilities?

What fraction of software bugs are security vulnerabilities? Obviously, software bugs can be security vulnerabilities -- but also obviously, many software bugs have little or no security impact. Is ...
2
votes
1answer
627 views

Statistics about webservers and browsers SSLv3.0 support

Since I'm working on a little historical document about the SSLv3.0 protocol and it's most important attacks, it would be lovely to add some statistics about how many webservers and browsers still ...
2
votes
2answers
3k views

What are the most common infection vectors for personal computers?

We have OWASP to tell us about common security vulnerabilities in webapps and such, but what are the most common infection vectors for personal computers? A few example vectors: Social engineering ...
1
vote
2answers
467 views

Statistics of attacks on unhardened Web Server

Suppose my web server is on the public internet. It's not behind firewall hardware. It does use HTTPS, and it has its OS firewall software turned on - but this is the only security mechanism in place. ...
1
vote
0answers
64 views

Needed: Reference data on the rate of adoption of secure email protocols [closed]

I am working on a security presentation in which I need to show that the incidence of unencrypted email protocols (e.g. POP, IMAP without STARTTLS) over the past 10 years has decreased and the amount ...
0
votes
3answers
97 views

Can I safely use my own statistics to assess password strength on number of times a password is used?

Lets assume I want to give my hypothetic 10mio users userbase a good feedback on their password strength. Besides the classical entropy tests and top500 list of bad passwords, I might want it to be ...
0
votes
1answer
63 views

What TLS session resumption percentage?

I would like to plan a system and I am asking myself how is it going to influence my performance if I am not going to implement TLS session resumption. Does anyone measure how often is the use of TLS ...
0
votes
1answer
30 views

Is it possible to tell when a remote bitmessage client is creating new messages?

One StackExchange answer mentioned bitmessages can be traced, another said it is fully anonymous. The second link seems to cite Wikipedia but a user points out that this anonymous concept doesn't ...