Questions tagged [security]

For posts about security issues centered around Stack Exchange. If you think you found a serious security vulnerability, please report it on the Security page found at Do not post such reports on Meta!

Filter by
Sorted by
Tagged with
-20 votes
2 answers

Is Stack Exchange vulnerable to manipulation by an artificial general intelligence?

I recently read the post Is Stack Overflow's reputation system vulnerable to manipulation? which was reassuring, but I'm wondering if it is likely that the tools and the people who use them could be ...
phil1008's user avatar
  • 212
16 votes
0 answers

Feature request - A simple credential leak detection in the answer tab

I recently analyzed Stack Overflow for leaks, and the sites contain a lot of leaks (Stack Overflow did contain most of them, but still and do contain some leaks). ...
matan h's user avatar
  • 277
12 votes
0 answers

Use a different CAPTCHA provider for privacy and security [duplicate]

Note: this is not a duplicate of Replacing reCAPTCHA or Please use another captcha than reCaptcha, because this post is chiefly about privacy and security concerns, and not usability, challenge ...
O5 Command Stands With Ukraine's user avatar
-8 votes
2 answers

What responsibility does SE/SO have in ensuring users understand they may be inadvertently sharing sensitive information in their posts?

SO/SE is a great resource for folks. These folks often [inadvertently] share information they might not have meant to. A good example is when someone posts a question in any of the communities with a ...
IMTheNachoMan's user avatar
-5 votes
1 answer

Trustworthiness of proposed links?

If a question is asked and someone proposes a link to some executable etc. as a solution to the question, has there been a case that malware was being suggested (perhaps unknowingly too)? Is there a ...
Jim's user avatar
  • 107
172 votes
4 answers

Recent site instability, major outages – July/August 2022

On Friday, July 29th, starting at 13:36 UTC, we experienced a very large surge in traffic to our web servers, indicating a DDoS attack. This surge effectively brought down the Stack Exchange Network ...
Josh Zhang's user avatar
  • 9,316
62 votes
2 answers

Testing new traffic management tool

Stack Overflow will be experimenting with some new HTTP traffic management technologies. Users should not see any negative effects. That said, we felt it would be prudent to announce that the test ...
Josh Zhang's user avatar
  • 9,316
26 votes
2 answers

Who is Samuel Ordonez and why are they a moderator here?

I just noticed this profile: What is going on? If it's a new SE staff member, shouldn't they only get staff bit, and not moderator? Or is this a new hacker? There are more cases like this on other ...
Shadow Wizard Love Zelda's user avatar
430 votes
2 answers

Update on the ongoing DDoS attacks and blocking Tor exit nodes

For the past month, Stack Overflow has been hit by weekly DDoS attacks that progressively grew in size and scope. In each incident, the attacker(s) have been changing their methodology and responding ...
Josh Zhang's user avatar
  • 9,316
10 votes
1 answer

What scope to supply to get a refresh token from Stack Exchange?

In the process of implementing a OAuth app for Stack Exchange, I noticed that none of the approaches that conventionally work - supplying a offline_access scope, for example - result in the OAuth ...
Benn's user avatar
  • 103
57 votes
0 answers

Stack Overflow and CVE-2021-44228 vulnerability (in Log4J)

Update 2021-12-21: Mitigation for all Log4j-related 3 CVEs is complete on the following products: and related (public) websites Stack Overflow Teams: Free, Basic and Business Stack ...
Tom Limoncelli's user avatar
  • 7,266
10 votes
0 answers

Use subresource integrity for JavaScript embedded from other domains

SE sites require a whole bunch of JavaScript files to work, with most of them served from a different domain than the main Stack Exchange or Stack Overflow domains. Some of these JavaScript files are ...
Mad Scientist's user avatar
48 votes
2 answers

Malicious app that misuses Stack Overflow trademarks is up on the Google Play Store

Today I came across an Android app which is misusing Stack Overflow's logo and name in the Google Play Store. Users have reported regarding the security issues they have faced and the developer has ...
19aksh's user avatar
  • 2,581
30 votes
2 answers

Removing granted access to an Application is no longer working

When you visit your profile on the tab Settings you'll find the option "Applications". It lists the Applications you've granted access. Each Application has a button at the right hand side ...
rene's user avatar
  • 89.2k
-2 votes
2 answers

Option to remove the @username references in the replies from your history, when you change your name [duplicate]

Regarding Change all @username references in comments when a user changes their name? and taking into account the issues raised. Rather than suggest a change, I suggest a reference removal from every ...
Anon's user avatar
  • 454
3 votes
1 answer

Unrecognized email address in the settings of community digests

Very recently, I visited the email settings of my account in To my surprise, I saw in the email settings an email address that I did't recognize (not belonging to me)...
Name's user avatar
  • 131
40 votes
1 answer

Anyone is able to see ♦ moderator announcements

There is a way for anyone to see ♦ moderator announcements despite not being one: This can be done by creating a Stack Overflow team (which is now free!), then going to{...
smitop's user avatar
  • 4,788
-10 votes
1 answer

I deleted my question from Stack Overflow. How can I delete the revision history? [duplicate]

I deleted my question from Stack Overflow having some sensitive information, but I believe the question is not completely removed from Stack Overflow. It also has a revision history, so I want to ...
Muhammad Nouman's user avatar
151 votes
12 answers

A deeper dive into the May 2019 security incident: blog post feedback

We just posted an update to the security incident that happened back in May 2019 with technical details of what happened, how it happened, and the remediations we applied to prevent an incident like ...
Dean Ward's user avatar
  • 9,759
32 votes
1 answer

Possible to see any user's site preferences (privacy breach)

Most current user profile-related pages contain user-id in the URL section, e.g. my edit profile page: If you try to open it you will see a 404 stub: ...
αλεχολυτ's user avatar
37 votes
2 answers

Are there any updates to the May 17, 2019 security incident?

About a year ago, there was a security incident on Stack Exchange. The last blog post I found on that matter concludes with: We will provide more public information after our investigation cycle ...
MEE's user avatar
  • 7,290
12 votes
1 answer

How safe is the Stack Exchange app?

After learning some time ago that the Stack Exchange app was no longer being serviced, I got to wondering how safe is the app? I tried finding an answer but could not seem to find one. Is someone ...
Tom Sol's user avatar
  • 230
15 votes
0 answers

Bug allows anyone to pin any message in any room! [duplicate]

I found a small bug that allows any user to pin a message even if they are not a Room Owner. If a message is pinned and then moved, it remains pinned in the room it is moved to even if the user who ...
user7886229's user avatar
3 votes
1 answer

Picture are not shown in all Stack Exchange sites [duplicate]

This is a screen shoot of SE I took from here. That's mine. But mine or others are the same, not working, no image is shown. That's makes it difficult for me to understand a topic. I have tried with ...
AirCraft Lover's user avatar
7 votes
3 answers

Why does a particular user profile trigger 'Deceptive Site Ahead' message?

Clicking on the username in a comment by user l'L'l on this question seems to trigger chrome's security alert, stating Attackers on may trick you into doing something dangerous like ...
stevec's user avatar
  • 1,245
9 votes
0 answers

Question owner can't write in chat created from comments - system picked wrong "Michel Keijzers"? [closed]

See Oscilloscope scrolling I (as moderator) created a chat from the comments on the question; now the OP of the question claims that he can't write in the chat. I looked at the chatroom properties, ...
Dave Tweed's user avatar
  • 1,037
4 votes
1 answer

What security concerns relate to having a "copy code" button?

This answer to a "copy code button" feature request states: I have learned that this functionality simply will not be implemented due to security concerns. So what security concerns? I visit '...
dustytrash's user avatar
  • 1,536
5 votes
3 answers

How do I better protect myself on Stack Exchange?

This is a FAQ proposal. Its aim is to advise and better protect users across the Stack Exchange network but especially to users who can be as young as 13. It is hoped that this guide will help users ...
Mari-Lou A Слава Україні's user avatar
-23 votes
2 answers

Prefer only 'they' for personal pronouns due to privacy and security

This is specifically regarding updates to the new CoC (Official FAQ on gender pronouns and Code of Conduct changes) addressing personal pronouns. The point, up front With Internet hackers, bots, and ...
Jesse's user avatar
  • 1,469
40 votes
0 answers

What is the status of the secure electronic opt-out of the mandatory arbitration that was promised?

In the comments of this post, Tim Post responds to my request for a "secure, electronic means" of the opt-out of mandatory arbitration with the following @jhpratt And you'll get one. And a lot of ...
jhpratt's user avatar
  • 4,588
-20 votes
1 answer

Stack Exchange Security vs. Online Forums [closed]

How secure is Stack Exchange compared to online forums such as Reddit or Quora? Better? Worse? How difficult is it to hack and how secure is user information?
NeonKraken's user avatar
1 vote
0 answers

Is it possible to have a login which isn’t an E-mail?

I would like to be able to manage my accounts (private information) independently of my e-mails (public information) because: I would like to avoid any sharing of accounts between different servers, ...
dan's user avatar
  • 221
2 votes
0 answers

How to change my login and login provider [duplicate]

I have been using an authentication through my Gmail account because many years ago I thought it was a good method from a security standpoint, (even if the fact to use an E-mail as an account is a ...
dan's user avatar
  • 221
2 votes
0 answers

Getting attention for answers that have aways been incorrect [duplicate]

There's a question about what to do about outdated answers, but what if the answer is not outdated but was always incorrect and gave simply wrong information, or more seriously information that might ...
Michael's user avatar
  • 129
11 votes
0 answers

The mobile app shows too informative login error messages

Today when I was moving to a new Android phone, I have noticed that when I typed my account password incorrectly, the message I have received was "Error while attempting to login: Bad password". Out ...
vakus's user avatar
  • 219
24 votes
2 answers

A suggested edit cuts out allegedly malicious links. How do I safely check that claim and what review action do I take?

I came across this suggested edit on Movies.SE this morning. The edit cut out two shortened links (TinyUrl), claiming they linked to a virus, and added a disclaimer not to click said links in the ...
Jenayah's user avatar
  • 14.8k
0 votes
1 answer

Possible to vote to close for old, decommissioned close reasons (with proof of concept)

tl;dr install this user script, and it becomes possible to vote to close for old close reasons such as "not constructive" and "too localized". After doing some twiddling with Stack Exchange ...
Sonic the Anonymous Hedgehog's user avatar
4 votes
1 answer

URLs for deleted questions get SEO'd automatically - is this a security issue? [duplicate]

When a user visits the link of a deleted questions, he can still see the title in the address bar. For example, when I go to, which is a deleted question, it redirects ...
Matthes's user avatar
  • 49
39 votes
1 answer

Users are able to register apps that look official (for phishing)

Recently, a user was able to register an app with the name "StackOverflow". Alarmed, I tried it myself. If you click this authorization link, you will see: ... which sure looks official. This is ...
Awesome Poodles's user avatar
16 votes
1 answer

Why would StackExchange logs show me logging in *from* a stack exchange server?

Looking at my login history (at I see I've logged in several times from the IP address "" but according to a quick whois search, that IP belongs to ...
Still.Tony's user avatar
2 votes
0 answers

Broken or wrong links in Security Hall of Fame

The Security Hall of Fame contains two problematic links: The link to points back to Stack Overflow. The link to Russel Van Laurio facebook profile leads to 404 Page Not Found error ...
Shadow Wizard Love Zelda's user avatar
5 votes
2 answers

Where to ask about improvements for a security scenario?

I'm building a mobile application that transfers points between users via QRCode. I'm concerned about security and am looking for effective simple yes secure algorithm to use. What is the best ...
Abozanona's user avatar
  • 215
15 votes
1 answer

Prevent users from sharing private keys in cryptocurrency related communities

Being an active member of the Ethereum Stack Exchange community, I stumble upon many threads started by new users containing sensitive information about their digital wallets - private keys and 12-...
Paul Razvan Berg's user avatar
20 votes
2 answers

Can a hacker who hacked a Facebook account access through their linked OAuth account?

Recently Facebook was hacked with 50M accounts compromised. I just got a message from a moderator of Stack Exchange site Information Security that my account has been suspended. I'm writing in ...
Chloe's user avatar
  • 781
3 votes
3 answers

Email from Stack Exchange with a Python file attached

I received an email from Stack Exchange with a Python file attached, and it seemed suspicious. I thought y'all would want to take a look. email: From: "Stack Exchange" <do-not-reply@stackexchange....
ox.'s user avatar
  • 201
3 votes
1 answer

How to login to SE sites that don't support SEOpenID without giving them my SEOpenID password?

When I'm already logged into (aka SEOpenID) then I am able to log into (aka SE) by simply clicking the button "Login with Stack Exchange". I am not asked for ...
user avatar
14 votes
0 answers

Did Stack Exchange manage to hire a Director of Information Security?

According to How is the security bug bounty program doing?, Stack Exchange is hiring a Director of Information Security. We are in the process of hiring a Director of Information Security who will ...
Panda's user avatar
  • 11.3k
54 votes
1 answer

Your handling of security reports is disappointing

I'm trying to get a security vulnerability on a Stack Exchange domain fixed for about 8 months, but the lack of progress and communication is frustrating. Unfortunately, asking for status updates ...
Arminius's user avatar
  • 895
13 votes
1 answer

Dealing with highly sensitive personal information in a post

Recently, I found a user had posted a complete copy of their credit card magstripe in a question on Security SE. As I did not have 2k rep on that site at the time I could not force an edit to hide the ...
jrtapsell's user avatar
  • 345
15 votes
1 answer

How is the security bug bounty program doing?

Last year, SE announced setting up a HackerOne Security Bug Bounty Program in private beta mode, which has received tons of positive feedback. Since then, it seems there haven't been any public ...
Arminius's user avatar
  • 895

2 3 4 5