Information Security Weekly Newsletter
Information Security Weekly Newsletter

Top new questions this week:

Why is "www." considered unsafe in this HTTPS URL?

I was doing some cross-origin requests to Soundcloud's oEmbed and I noticed some strange behaviour. When doing a request from my localhost, which is on a regular HTTP connection, everything worked …

ssl  
asked by Jon Snow 22 votes
answered by David Houde 85 votes

Are there secure alternatives to single-use password reset links?

We currently have what I believe to be a pretty standard scheme for dealing with password resets. Our reset links are single-use links: They expire immediately after they've been visited, even if the …

passwords  
asked by svidgen 22 votes
answered by Stephane 14 votes

Additional security benefits from Multi-Factor Authentication?

Does multi-factor authentication provide any additional security benefits on top of doing a better job at correctly identifying and authenticating users compared to single factor authentication? In …

authentication multi-factor  
asked by Cowlby 14 votes
answered by Cory 11 votes

Obfuscated php code found on the server

I found this piece of code hosted on my website I'm sure it's a malware. Any have an idea what this script does or how to deobfuscate? <?php …

php  
asked by calculataur 9 votes
answered by Tokk 8 votes

Can ISP block HTTPS selectively?

Can ISP block HTTPS selectively i.e. certain websites cannot be accessed using HTTPS while others can be ?

ssl  
asked by rintec 8 votes
answered by Eric G 7 votes

Does CSRF prevention also prevent reflected XSS attack?

What I understand about reflected XSS is ... When a web application is vulnerable to this type of attack, it will pass unvalidated input sent through requests back to the client... [1] …

xss attack-prevention csrf  
asked by mg007 7 votes
answered by SilverlightFox 9 votes

What is "c/s" in context of hash cracking?

I was reading hashcat's About page, and the stats are listed in terms of c/s....is that "Cracks per seconds"....the 'c' part seems wrong, I'm just guessing. What is 'c'?

hash  
asked by Aerovistae 6 votes
answered by Jeff Clayton 10 votes

Greatest hits from previous weeks:

Is Telegram secure?

There is a new WhatsApp-killer application called Telegram. They said that it's open source and that it has a more secure encryption. But they store all the messages in their servers and WhatsApp …

smartphone instant-messaging  
asked by ilaz 21 votes
answered by Terry Chia 30 votes

Are there any reasonable TrueCrypt forks?

Unfortunately, TrueCrypt may have been discontinued yesterday. I use LUKS on Linux, but I liked the fact that with TrueCrypt I had a portable solution across Windows, Mac, & Linux. TrueCrypt …

disk-encryption truecrypt luks  
asked by Michał Šrajer 34 votes
answered by Philipp 37 votes

Can you answer these?

How can I protect my "try it with one click" service?

I have a service with "try it now" experience that currently offers a "one click" effort. This service has a pool of N resources (lets say 50). Each new resource takes about 1 hour to generate. …

authentication denial-of-service  
asked by guy mograbi 2 votes

Facebook drops SSL

I observed that sometimes my facebook https connection changes to http after using the site for a while. Is it possible for ISP or somebody in between to do such a thing by throttling the net speed ? …

ssl  
asked by technic 2 votes

How can document.referrer be used for XSS?

A very simple example... <div id="cat"></div> <script> document.getElementById("cat").innerHTML = document.referrer; </script> or <script src="' + document.referrer + …

xss javascript dom  
asked by Michael Blake 1 vote
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