A branch of computer technology known as information security as applied to computers and networks.

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3answers
491 views

Someone sent a message to a friend on Facebook. It wasn't me. Nobody else has access to my account. How?

Someone sent a message to 4 friends on Facebook. It wasn't me, and couldn't've been me, since I was driving at the time. Nobody else has access to my account. The only 2 devices that are logged into ...
19
votes
4answers
27k views

How to remove Dropbox access from a computer you no longer have?

I have Dropbox installed on a few computers. One of which I no longer have access to. I no longer wish for that computer to be able to have access to my Dropbox account but I see no way to stop ...
-2
votes
1answer
88 views

Hiding everything of a Gmail account?

I have a gmail account and i want to give my account password to someone else who will use it for another app that my gmail account is connected to. How do i let him use my email and password only ...
2
votes
0answers
78 views

Is there a way to view Gmail login history beyond the default few hours? [duplicate]

I'm trying to track down some suspicious activity that happened two days ago, but Gmail's "view recent activity" doesn't go back that far. Is there some other place to look at it?
2
votes
2answers
1k views

Google Keep Does not work after turning on 2-factor Authentication on Google Account

I have been using "Google Keep" extensively to keep notes on my workstation, laptop and my mobile phone. I turned on two factor authentication recently and Google Keep stopped working on my desktop ...
2
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0answers
1k views

How to remove recovery/default email addresss

Someone has been trying to access my Yahoo Mail account through password recovery. I changed the password, so this is no longer a problem, but as I was going through "I forgot my password" recovery ...
3
votes
0answers
24 views

How do I know if a LastPass One Time Password (OTP) has been used?

I intend to give some LastPass one time passwords to close family. Is there a way to know if a one time password has been used? Is it possible to get an email notification that it was used?
0
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0answers
79 views

Can the “Suspicious Sign In Prevented” message from Gmail be sent in error?

I have multiple Gmail accounts. There's this particular Gmail account which I have not signed into for a pretty long time. The forwarding address for this Gmail account is set to my MAIN Gmail ...
7
votes
1answer
120 views

How do I check the exposure of my machine to the internet? [closed]

My ISP just sent me over a box ("modem") and now I am online. I am afraid of beeing exposed directly to the internet. How do I check to which level my machine is accessible from the internet?
5
votes
1answer
265 views

How does the encryption on Mega work for sharing?

If files sent to Mega is encrypted client-side, how exactly would files be shared without the key being sent through Mega's servers at some point? Does Mega provide some sort of API to allow for an ...
3
votes
2answers
5k views

Facebook: Remote log out all sessions

How can I see the list of Facebook sessions and remotely log out from all sessions of Facebook?
3
votes
1answer
658 views

YouTube account hacked? Could someone get into my stats and corrupt them?

This is my first question on SuperUser [note: I posted this on StackOverflow, but was informed it was more relevant here; apologies for double posting]. I hope someone can help me. I recently ...
19
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4answers
3k views

Does Facebook provide an SSL/TLS interface?

Does Facebook only support HTTP or does it have HTTPS also?
2
votes
2answers
4k views

How do I get Gmail to stop “detecting suspicious activity” every time I travel?

Every time I travel, Gmail believes there may be suspicious activity as the sign in comes from a different location; I get that. However, it then asks for my password and usually will not recognize ...
2
votes
1answer
2k views

Web based SFTP Client [closed]

Has anyone heard of an online FTP client that supports SFTP? My Web host only allows me to use SFTP, and I often work on computers on which I can't install a desktop SFTP client, or that disallow ...
2
votes
1answer
644 views

Gmail “suspicious sign-in attempts” email - legitimate? [duplicate]

I got two emails this week from Gmail, claiming to have prevented "suspicious sign-in attempts" to my account. These emails came from the address: signins.activityalerts@gmail.com (using the name ...
1
vote
2answers
244 views

Gmail unusual activity but no alert

From time to time, I check the Gmail "Last account activity" log. I live in Belgium and mainly use the usual Gmail website. Yesterday, I noticed there was two mobile connections from France, with this ...
0
votes
2answers
39 views

one github account, both personal and for work - how to make it secure?

So I do have a github account which has my personal stuff, but it also is a part of the 'organization' I have at work. Now - the work stuff is sensitive. I really care about it being secure. I want ...
6
votes
0answers
1k views

How is my password sent across when I check Gmail and access a bank site? [closed]

What encryption is used when my password is sent across in Gmail mails and when I do online banking? RSA? DSA? Public-private key encryption? In key encryption, which entity is assigned a ...
4
votes
1answer
861 views

Reading someone else's Gmail inbox if you have their session URL

Is it possible for someone to gain access to my Gmail inbox if they use a link from when I was logged in? I was trying to copy a link from an email in Gmail and accidentally copied the URL in the ...
1
vote
1answer
82 views

Can't set up 2 step authentication on a Google Apps for Business account

I'm having issues setting up 2 step authentication on a Google Apps user account. I've gone to the settings page and normally under the password tile there is the option to setup 2 step auth, but when ...
9
votes
2answers
2k views

Can I generate backup codes for AWS multi-factor authentication (MFA)?

I'm using multi-factor authentication (MFA) to log into the Amazon AWS console. I'm using Google Authenticator on my Android phone to generate the one-time tokens. Other services sometimes provide ...
0
votes
1answer
756 views

Recover hacked Gmail account where mobile numbers and alternative Gmail were changed [duplicate]

Someone hacked my Gmail account and now I can't access it. The hacker changed my alternative Gmail also, and phone number. Is there any way I might recover my account?
-1
votes
1answer
1k views

How do I allow sign-ins from unusual locations in Google?

I work for a company that provides internet to the users through proxy servers located in the USA and Switzerland, which results in all kinds of inconveniences, of which the most annoying is the fact ...
1
vote
0answers
320 views

How do I tell Google that the supposedly suspicious activity was me?

Since a few months ago, all Google web apps have been telling me that they suspect suspicious activity on my account: "Warning: Someone signed in to your account from a different location. Was it ...
5
votes
1answer
37k views

Can I see when and where my Facebook account was accessed?

Does Facebook keep records of when I, or someone else, accesses or logs into my account? I want to be able to see the access log from my homepage. My computer was recently stolen and my Facebook was ...
2
votes
1answer
10k views

How to contact Facebook and get IP of last unsuccessful login attempts

My account was recently unsuccessfully accessed, because I received the email about unsuccessful logins attempts and with the link to "go back to Facebook via clicking link". I am concerned who was ...
1
vote
1answer
83 views

How not to use Google Sync at a particular computer?

Yesterday, I logged in to Google from a rather public computer using Google Chrome to check my emails. As soon as I logged in, a popup window appeared and informed that my bookmarks, passwords, ...
1
vote
1answer
415 views

Live: “Someone else has been using your account” — can I see who?

In live.com and related services that use the same account I've been receiving the message It looks like someone else might be using your account Now, this has happened to me before in other ...
4
votes
3answers
7k views

I've received a “Getting back onto Facebook” email - does it mean someone were trying to access my account?

I've received a "Getting back onto Facebook" email. I usually receive that email from Facebook when I enter a wrong password, but I'm sure this time it wasn't me! What should I do now to keep my ...
1
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0answers
38 views

Prevent other users from changing Dropbox Desktop preferences

I use Dropbox at my workplace and using selective sync, only allowed the syncing of certain folders. However, as I noticed, other people can easily sync my other files if they simply swoop in my ...
7
votes
4answers
5k views

Has Facebook disabled Login Approvals?

I have recently discovered that login approvals on Facebook is no longer available: Compare this with @gravity's screenshot from this answer: Is there anything special that I'll have to ask my ...
6
votes
7answers
12k views

How secure is sending an email from GMail?

When you send an email from GMail to someone what measures do they have in place to make sure that my email is not read by man in the middle attacks, or other servers that the email is routed through. ...
1
vote
1answer
3k views

Do I have to worry if somebody tried to reset my Facebook password?

I have got this email earlier which asked me that I have requested t change the password of my FB account which I didn't. I refused the request for that and haven't changed the password of my Gmail ...
41
votes
1answer
12k views

How does Google's new two-factor authentication work with IMAP, POP, etc.?

I'm very excited about Google's new two-factor authentication. Two-factor authentication means, in this case, that instead of just authenticating based on "something you know" (your password) you also ...
2
votes
1answer
3k views

Gmail “suspicious sign-in prevented” message - How to stop it?

I am a Spaniard living in China. Recently I have been receiving many alert messages from Google "Preventing myself" from accessing my account. I think because I use a VPN to connect to the internet. ...
0
votes
0answers
21 views

My gmail address was hacked and I can not access my account [duplicate]

My Gmail was hacked and none of the steps that Google offers via internet works for me. I want to speak to a Gmail tech to explain the situation, but haven't had success getting in contact with ...
17
votes
2answers
15k views

How can I get a warning if someone try to hack my Gmail account?

Is there a hidden feature in Gmail, that let you know each time someone has tried to login to your account with a wrong password? LogMeIn has this feature. Is there something like that in Google ...
17
votes
3answers
8k views

How do I untrust a computer with Google two-factor authentication?

I use Google's two factor authentication to send my phone text messages with a string of 6 numbers every time I log into a computer that isn't mine. It has worked well so far until today. Today, I ...
0
votes
3answers
886 views

Can someone (employee/freelancer) steal a Twitter account if you give them the password?

How do you handle hiring someone to make tweets for your company but also keep the account secure?
14
votes
3answers
60k views

Facebook last login

I think somebody logged into my Facebook account. Is there any way for me to find the last login IP address or the location from where this occurred?
0
votes
2answers
169 views

Ex hijacked my Facebook account [duplicate]

A disgruntled ex hijacked my Facebook account, which I abandoned years ago, and posted photos of me in compromised circumstances. I can no longer gain access to the account, and I don't remember the ...
4
votes
1answer
133 views

Trusting apps from Google Apps Marketplace

From my experience with third-party Facebook apps, I'm wary of adding apps from the Google Apps Marketplace to my Google Apps installation. Can I trust apps from the from Google Apps Marketplace? ...
0
votes
1answer
102 views

How to prevent others from hotlinking to my images on Blogger.com?

I have a Blogger.com website that another site is hotlinking to various images. I don't believe I have access to the htaccess file to try and stop it. Is it possible?
5
votes
2answers
100k views

Logout out of all devices for a Google account

I want to force logout on all devices signed into my Google account. I don't actually use Gmail with this account, I use it for primarily for Drive and Calendar. Recently I've logged into a few third ...
3
votes
1answer
4k views

I can't see the comments on my Blogger posts

When checking my Blogger account I can see that there are some comments on the posts. Most have just one comment - which I'm sure are the "ping back" comment from me sharing the post on Google+. ...
5
votes
3answers
850 views

What is TurboTax actually doing after you login when it says “Creating Secure Connection”?

I've also noticed this on a few other financial related sites. There is a delay and an animated working indicator with a message to the effect of "Creating a Secure Connection." I'm a web developer ...
9
votes
1answer
138 views

What happens when I browse items in my Lastpass vault on Chrome while running other extensions that can “Access all your data on all websites”?

The way I use Lastpass with Chrome, I often open and browse my vault items, including the passwords. I just noticed with horror that I have several other extensions enabled that have permission to ...
1
vote
1answer
15k views

How do I access Outlook.com without giving them my phone number or another email address?

Outlook.com is asking for a personal phone number or alternate email address to “improve my security” and won't let me access my account without compliance. How do I bypass this? Or, how do I ...
65
votes
5answers
119k views

Facebook detects if you are logged in Gmail

Today I was playing with some web security, and there was a surprise when I decided to test the Forget the Password link on Facebook. I chose to send the password reset code to my Gmail address, and ...