The attribute of a system that prevents the release of data to unauthorized individuals. The ability or expectation of an individual or group to reveal information about themselves selectively or not at all

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2
votes
3answers
173 views

Security “Threat” with Picture of Yourself?

This is one issue which I have came by in the world of Security, which I can not seamlessly wrap my head around. How is it a threat to one's security by showing them a picture of themselves to people ...
5
votes
2answers
221 views

Can Heartbleed expose a TOR user's IP address?

It is interesting to observe, that TOR exit nodes with out-of-date OpenSSL implementations can themselves be affected by the Heartbleed bug. Can Heartbleed expose a TOR user's IP address merely by ...
1
vote
2answers
177 views

How to know what personal information companies know about myself

I've been learning about Cyber Security and how to protect myself online after reading some books on the subject and I want to know how much Information i've handed out to companies.
6
votes
1answer
878 views

Imei and phone number given to unknown sources. What are the risks?

The facts: A friend put his phone number (and possibly the IMEI) for his android device into some kind of hacking PC software that promised to (and actually did) extend his Whatsapp account that was ...
-1
votes
2answers
259 views

Can you listen to your last GSM call recorded when calling back a user?

My wife called a GSM/3G number abroad and the call was dropped. She called again and she could hear the whole conversation repeated with the other party but with blank period from her side of the ...
43
votes
5answers
4k views

How does a country block its citizens from accessing a site?

Following Turkey's recent social site blocks, I am wondering how can you efficiently accomplish that as a country. Similar for a big company. Blocking IPs → easy to circumvent, (proxys, tunnels, ...
1
vote
3answers
181 views

OpenPGP Master Key Size

Currently the default maximum key size is 4096. I know this can be changed by recompiling the software, and I don't mind doing that. My problem is about compatibility issues. It makes sense that some ...
0
votes
2answers
581 views

If someone knows my wi-fi password, will he know what I am doing? [duplicate]

I just told my friend my Wi-Fi password, will he know what I am doing even though he does not connect to my home internet?
2
votes
2answers
442 views

Is it possible to completely wipe a flash memory? [duplicate]

i have a 64 gb micro SDXC memory card that has sensitive files on it and i want to completely erase it but i heard it was impossible to be sure that your data was erased because of wear leveling ? The ...
0
votes
1answer
40 views

Safely creating and communicating within a fully decentralized p2p network

I'm not entirely sure if this is the right place to ask this, and I'm also slightly fuzzy on how the p2p system works, so correct me if I'm wrong. I've been looking into the practical implications of ...
1
vote
3answers
800 views

Any alternative available for RSA? Is the web still visible to NSA?

After the Snowden revelations, is there any mass change being carried out to HTTPS protocol? As far as I understood, any HTTPS communication is still visible to NSA as they can compromise the RSA ...
0
votes
1answer
86 views

what information can be accessed with just the bank account number? [duplicate]

one of my friends wants to deposit money into my other friends bank account. obviously she needs the bank account number to do this. Can she access any other information in with just the bank account ...
2
votes
3answers
118 views

Fingerprints of my computer

I'm recently interested in having an paranoid level of privacy but there is little question in my mind for which I cannot find an answer. I know there is fingerprint of my browser which it gives away ...
0
votes
2answers
71 views

Anonymizing data for applications

I try to design a system which reads events comming from devices, stores them and exposes API to various applications. Originally I wanted to introduce a module Id translator, so I would store only ...
102
votes
4answers
29k views

How does the authentication in the new UK £1 coin work?

The UK is getting a new £1 coin. Its designers, the Royal Mint, claim that unlike current coins, it includes built in technology for high speed authentication and verification everywhere from ATMs to ...
1
vote
2answers
211 views

Is it safe to rely on UUIDs for privacy?

I'm uploading files on S3, where the filename is a UUID. All files uploaded are publicly read/write, however these files are considered private to users. Is it possible for someone to guess a UUID, ...
0
votes
2answers
39 views

How likely would /var/mail be encrypted in a paid host? [closed]

I pay for a very basic web hosting plan, which includes a personal email address. Would the sysadmin of said host be able to read the content of my messages? How likely would my personal mail folder ...
0
votes
1answer
163 views

Employee Snooping [closed]

I just got hired at this SW tech company with a few IT gurus in it. There is a clever genius that is suspect. He obtained my personal home email address I use. It was obtained from company ...
5
votes
1answer
1k views

Can an iOS 7 app access either device camera without user knowledge?

This statement in the iOS 7 release notes implies that non-China devices do not need user consent: iOS now requests user consent for apps to use audio input on all iOS 7 devices. For devices ...
-1
votes
1answer
128 views

How bad is to buy domain name with .ext from another country even if they allow non citizens to own one?

I'd like to purchase a domain name from a country that does not require citizenship, since they can make nice urls, they are more available and sometimes not too expensive too! But few things annoys ...
40
votes
8answers
7k views

Why am I allowed to access protected Windows files when I boot Ubuntu from USB?

How come I'm allowed to reboot a computer that I don't own, put in a USB, boot ubuntu from it and then access all files stored on the drives available (even critical files such as system files on C ...
4
votes
3answers
524 views

How to protect against a determined harasser

My girlfriend is an admin on a German speaking site that for some time has been harassed by what we presume is a disgruntled user. At first it was merely an annoyance but a couple of days ago the ...
1
vote
1answer
106 views

How could a third-party know the contents of an email I sent to someone?

Apparently, a third party knew the contents of an email I sent to someone within an hour after I sent it. The following possibilities come into mind: The recipient forwarded the email to the third ...
0
votes
1answer
84 views

What are the strengths and weaknesses of using a single 'burner' computer vs. many public access computers over a sustained period? [closed]

Assuming that the user is accessing/publishing related sensitive information over this period, and also assuming that they would take additional precautions in both scenarios, such as a Tails live ...
2
votes
2answers
511 views

Data protection laws and regulation for storing IP addresses for registered users [closed]

I have a website, large amounts of this site can only be accessed if the user logs in. I would like to use the users IP addresses as a means to determine where they are when they access certain pages. ...
1
vote
0answers
92 views

Store which parts of an IP address, for user to remain anonymous?

I'm thinking about building a very anonymous forum, where people can comment and upvote each other's comments anonymously. People are supposed to remain anonymous even if the forum's database contents ...
1
vote
1answer
368 views

Are WhatsApp or Telegram secure enough to use for office communication?

We are thinking about switching from e-mail to instant messaging. Do you think, Apps like WhatsApp or Telegram provide enough security for that?
4
votes
1answer
174 views

Security Consequences of compromised passport data

In light of the recent hack of the EC-Council site, where the hacker makes the point that he has access to passport data a general question arises. What, if any, are the security/privacy consequences ...
0
votes
1answer
170 views

WireShark and Facebook [closed]

Some time ago i try Wireshark at my home local network just for see how it works. I scan the connection of my mac to the router and also to other external ips. The flow of connections were high when i ...
1
vote
1answer
102 views

How can I be sure that my browser does not exfiltrate my passwords to some server?

This is my first question and I dont even know if it is the right place. If this is an off-topic just mark it as off-topic, don't go crazy and downvote. :P But how can I detect if my browser is not ...
1
vote
0answers
679 views

Is Threema secure? [closed]

Threema is the new hyped secure alternative to WhatsApp and such. But is it really secure? As far as i know it is not open source, so no one knows how good the sheme is implementet and whether or not ...
0
votes
3answers
166 views

Gmail, Google, and privacy

I am not sure whether this is the best place to get my concerns addressed, but I hope it is. I went through some earlier questions posted on this site about Gmail and privacy but they don't seem to ...
1
vote
2answers
2k views

Why is my browsing history visible outside my network?

Whatever I and my family members do at 'Home PC' is visible in the history in Google chrome in my 'Office PC'. The two networks are entirely different! I saw all websites visited on our home PC by my ...
60
votes
10answers
9k views

Where do you store your personal private GPG key?

So, I want to start using pass, but I need a GPG key for this. This application will store all of my passwords, which means it's very important that I don't lose my private key, once generated. Hard ...
0
votes
0answers
23 views

Why is it not advisable to have the database and web server on the same machine? [duplicate]

I'm bringing this across from a question on stackoverflow, but I'd like to focus specifically on the security aspects of it (and not the performance, etc..). My hypothesis is that the cost of ...
7
votes
4answers
517 views

airgap a smartphone?

im looking to use my smartphone purely as a portable computer, with no network functionality in order to protect my privacy, is removing the sim cards from it enough to airgap it or do i need to go ...
0
votes
2answers
67 views

Disk Wiping - How can I be sure [duplicate]

I am selling some hard drives but my question is. How can I be sure that the information is gone? Is there a good way to wipe the drives? What are ways I use to attempt to recover the data to ensure ...
4
votes
1answer
163 views

Should IBAN and bank details be considered private data and encrypted?

To pay off our users, they are asked to enter their IBAN and bank name and bank address. The users are mostly based in Europe. As far as I know (see also this question) these details can not be used ...
1
vote
1answer
123 views

Is authentication through proxy sites safer?

usually in office or wherever whenever we are blocked with gmail and facebook websites,we used to browse the site with the proxy sites,we used to pass our login data through proxy sites,my question is ...
2
votes
2answers
422 views

Can cookies reveal my email address?

When I visit livescore.com, ten seconds later I receive marketing emails from gambling companies. If I don't visit this site, I don't receive these emails. Similar things happen when I visit Twitter ...
2
votes
1answer
212 views

Extracting the GPG userid from the Public key file?

Is it possible to extract userid from GPG public key? I got public key only and want to know to whom it might belong. I find one possible workaround — to publish this information on keyserver — it ...
2
votes
2answers
145 views

Website doesn’t always log me out – Privacy concern or am I overreacting?

I’ve been applying to for some jobs and use one certain careers page somewhat regularly. I’ve started to notice that I don’t always get logged out even if I do click “log out” and see a message that ...
3
votes
1answer
118 views

what is differential privacy?

Currently I have heard a lot about differential privacy but I am unable to find out what exactly it is in a non-mathematicians language. Up-till now my understanding is that it add noise to the answer ...
0
votes
1answer
158 views

HTTPS Proxy Everwhere?

I am configuring a HTTPS proxy, which I want to use for my laptop wherever I go. The idea is that since its encrypted, I should be safe from eavesdroppers, even on open wireless networks. Think of it ...
1
vote
1answer
36 views

service providers and web activity

It is good to know that ISP have legal boundaries for retaining a client's internet activity. Is it possible that individuals can hack the ISP and then have access to someone's web history activity?
3
votes
1answer
654 views

Best practice for data security on a web application

I read a couple articles on privacy/security but still cannot get a clear picture of the best practice to ensure that an attacker will not be able to access users' private information. For storing ...
0
votes
1answer
2k views

What is the risk of leaking IMEI / IMSI numbers over a network

Should I worry if a developer programmed an app to send IMEI / IMSI number of the phone where the app is installed back to him? What can an attacker do with such information?
0
votes
2answers
90 views

Sending messages using OTR & and GPG — is it detectable?

If I send messages using OTR & GPG, will my ISP or some surveillance agencies know that I'm using them? "Look, he's sending an encrypted message. He must have some important secret. Let's go ...
4
votes
2answers
84 views

Internet and Email privacy in an “internet-enemy” country [closed]

Here where I live, it is believed that all the internet traffic goes through the hands of government agencies, and the telecommunication office is actually owned by the government. Given the ...
1
vote
2answers
237 views

Idea for hiding your mobile phones' location, and still be able to place and receive calls. Any suggestions?

The diagram below is a thought experiment that could provide a certain level of privacy to mobile (smart)phone users, beyond what they currently have. Some of it is purely theoretical, but it should ...