Data-leakage is the uncontrolled, unauthorized transmission of classified information from a data centre or computer system to the outside. Such leakage can be accomplished by physical removal of data storage devices (diskettes, tapes, listings, printouts and photographs of screen copies or ...

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0
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3answers
294 views

Most secure way to isolate computer on network

I handle personal client information. Stuff that shouldn't get lost. Because of this, I have had to be careful not to download or install anything that is in any way uncertain. One data stealing virus ...
3
votes
1answer
155 views

How long is the information on Facebook stored? [closed]

I was wondering how long Facebook stores our photos and posts? I hear two theories, one saying it is around half a year, after which all the data centers are going to erase our data. The other one ...
3
votes
1answer
287 views

Smartphone motherboard - Does it hold any data?

I recently went for a smartphone repair and got its motherboard replaced. However, it didn't occur to me to ask for the damaged motherboard back. I had confidential credentials and data stored. No ...
2
votes
1answer
83 views

Properly solving IP leaking from WebRTC and other apps with STUN when using a VPN

This is really a follow-up question from this: Stun scripts/webRTC IP leaks I'm connecting to a VPN using a virtual adapter, which has a default routing rule so all traffic goes through it. I still ...
8
votes
4answers
433 views

Major industry password leaks using salted HMAC but without eg PBKDF2, scrypt

I'm trying to convince higher-ups on a project to use an iterative strengthening function to secure password-storage for a new system. The current proposal would store something like an HMAC of a ...
11
votes
4answers
3k views

Securely erase personal data from android phone before selling

I have just sold online my old Nexus 5 (Android Lolipop) and need to post it tomorrow morning. I would like to make sure the new owner can't access my files. What should I do?
1
vote
1answer
42 views

Possible threats on the memory buffer

If an adversary could identify a buffer's capacity, what would be the possible consequences?
3
votes
1answer
60 views

Metadata leakage from security camera upload times

Picture the following: A server controlling security cameras has a script that takes stored footage, encrypts the files with GPG, and moves it into a cloud storage folder (Dropbox in this case). If ...
24
votes
12answers
6k views

Is it possible to prevent unauthorized copying or recording of data by photographing screens?

I am thinking on a way which would prevent unauthorized copying or recording of data by photographing screens. I also think, if the content of a screen is understable for an eye of a living human, it ...
17
votes
6answers
2k views

How to securely, physically destroy a hard drive at home?

Hard drive in question has sensitive unencrypted data but has failed and no longer responds so can't be wiped. I'd like to physically destroy the said hard drive (3-1/2" desktop, spinning platter ...
2
votes
2answers
52 views

Can a web-filter track my internet access over application API calls?

I'm at college where each student has a login ID and password for internet access through the CyberRoam web filter for blocking certain websites. My question is, when I'm browsing Facebook, YouTube, ...
6
votes
2answers
755 views

How to Man-in-the-middle a whole network?

When performing a MiTM attack, you generally need to specify the router's IP address and the "victim" IP address. I'm trying to demonstrate to a business owner why he needs to secure his network, but ...
6
votes
2answers
488 views

Preventing information from leaving corporate network

How do you prevent confidential information from leaving the network.? Nowadays online storage facilities are in abundance. e.g. Google Drive, One Drive ...etc. Any employee can just upload sensitive ...
0
votes
1answer
137 views

Can a QR code steal my mobile's data?

For example https://web.wechat.com By scanning the QR code from my mobile, it automatically logs in with my wechat account. Here, can QR web sever or QR devices steal the mobile data?
-1
votes
1answer
312 views

What is one way to verify emails of compromised website if registrations are not validated?

There was recently a massive personal data leak, and the data seems to be from Ashley Madison - a site providing dating services to married men. The site takes any email and does not verify them while ...
4
votes
1answer
191 views

Is Chrome for Android leaking my phone number?

I accidently clicked on an advertisement, and opened it with chrome. It was one of those things where you can subscribe to an App Store for £4.50 a week for apps which are usually free anyway. ...
5
votes
2answers
166 views

Should Android apps for communication encryption and security require permissions like identity, device ID, contacts, etc.?

There is a Android application Threema for communication encryption and that says it does not collect user data, but it requires the following permissions: identity, contacts and device ID. Can ...
0
votes
1answer
242 views

How secure are the passwords stored at Google Passwords? [closed]

It seems Google activated central place for storing app/website passwords which is accessible at https://passwords.google.com/ and all the remembered Chrome passwords are synched there. In what ...
3
votes
3answers
384 views

Website knows that I'm connected via OpenVPN

When I'm connected to a OpenVPN server and visit http://ip-api.com/ I get this: OpenVPN UDP bs128 SHA256 Can somebody explain to me how this is possible and how can I stop this information leak?
1
vote
0answers
51 views

Restricting VMware View Copy/Paste Functionality

Does anybody know if it's possible to restrict VMware View copy/paste functionality depending on the source of the client? It seems VDIs can have GPOs set to configure copy/paste functionality, but ...
8
votes
3answers
3k views

I found my user details on already old, leaked account information list

I came across an old (>3 years) accounts information list which has been leaked to the web. The list included thousands (>10.000) of account details from a service or services. Apparently the event ...
18
votes
5answers
2k views

At what point in their employment should security policies be explained to an employee?

There are the basic things that need to be explained to every employee about a security policy. For example: How sensitive information must be handled. How to properly maintain your ID, and password,...
3
votes
1answer
122 views

Secure text document's fingerprint

The purpose is the same as with hashing: given set of confidential documents, I want to process them and store something secure like salted hashes/bcrypt. Later, when new document is given, I want to ...
4
votes
1answer
238 views

How to detect a database leak

Website keep getting hacked every day and every now and then we hear website owners react and tell "affected users that their password might had been compromised". Most sites that disclose such leaks ...
7
votes
3answers
2k views

How are leaked government credentials possible and what's the point?

In the wake of all these leaked/stolen/hacked government login/passwords being stolen it got me thinking. How is the leaking of these passwords even possible? Or are they of any real use? Aren't all ...
-3
votes
1answer
117 views

Data security is not perfectly possible, laws exist but no one uses them. What is missing on international level? [closed]

In my country (Austria) I was a member of the team that made laws for protecting the personal data of every person. In the meantime I realise that we have the laws but nobody claims them in ...
2
votes
1answer
73 views

What's the mechanism used to extract my user name on a website? [closed]

I was browsing this forum http://openelec.tv/forum/64-installation/40869-putting-openelec-onto-sd-card-using-usb-reader-from-a-mac-for-raspberry-pi ,and realised that they show my hostname and my (...
6
votes
3answers
1k views

Does reboot clear RAM?

How can I ensure that the whole RAM was zeroed-out? Does a reboot (Power On Self Test) clear whole memory before system is booted? Or does a Linux kernel zero memory before proceeding? I am familiar ...
1
vote
0answers
89 views

Vetting new IT development staff [closed]

In the realm of software development what would be the best way to vet prospective employees? We handle potentially sensitive information, and a code base which could be potentially lucrative to ...
0
votes
2answers
150 views

Is it safe to log JavaScript exceptions to the error console?

I know that on the server side it's very bad to display system-level errors instead of logging them to disk, because it could expose potentially sensitive information, but do the same concerns apply ...
4
votes
2answers
611 views

Possible to detect an/or shut off CryptoLocker by limiting total network bytes transferred?

Since a virus infected PC has to download (encrypt) reupload the entire file (to a file server), and repeat the process for every network drive, is is possible to detect this unusually high bandwidth ...
4
votes
2answers
191 views

Difference/Relationship between data leakage analysis and vulnerability analysis?

What is the difference/relationship between data leakage analysis and vulnerability analysis? How much and what kind of vulnerability testing is required for data leakage analysis? I have to give ...
3
votes
2answers
1k views

Anthem Leak - How do I find out if I'm affected?

Recently, Anthem (A health insurance company somehow associated with Blue Cross Blue Shield and potentially other insurance providers that I am unaware of) was the victim of a large data breach. I've ...
1
vote
1answer
309 views

Data classification and data leak prevention

We have several levels of data classification such as secret, confidential, etc for documents. To prevent leakage of such sensitive information to the outside, I am considering using a DLP solution. ...
6
votes
2answers
215 views

Invalid passwords leaked to logfiles

My company recently discovered that we're logging invalid login attempts, alongside with usernames and passwords. Those logfiles are stored on several machines and accessible to all team members. This ...
4
votes
1answer
330 views

What information could be gained from an Amazon shipping label?

My family has a bad habit of recycling Amazon shipping boxes without taking out the labels. We have been doing this for the past year or so and have noticed a slight and steady increase in the amount ...
0
votes
2answers
81 views

Web/App vulnerability responsibility [closed]

While auditing a few web apps and websites I uncovered a few serious vulnerabilities which I've since flagged (responsibly, of course). One of the things I noticed was that several development ...
11
votes
1answer
2k views

Who is responsible for leaking my personal information to companies? [closed]

Lets say I have a couple of friends who I have in my address book and of course they saved me in theirs. There might be the obvious information about me like my phone number and my email address but ...
-1
votes
1answer
68 views

What are analytics APIs accessing when they run, and how do you block or spoof them?

What are analytics APIs accessing when they run, and how do you block or spoof them? Usually all apps from desktop or mobile app stores, MMO clients, Steam and many utilities, and many games and ...
0
votes
1answer
63 views

Securing Diskless Clients from Data Leakage

I am experimenting with securing diskless clients booting both RHEL 6.5 and Windows 7 via PXE (and iPXE in the future) from iSCSI targets. These computers run only on an internal network and are ...
0
votes
2answers
95 views

What is the severity if someone read the ConnectionStrings_Prod.config?

I was doing an pen test in a website and the programmer did a big mistake and I was able to read any file. So I read the web.config and see the password for database was in ConnectionStrings_Prod....
2
votes
1answer
1k views

Flawed understanding of SQL Server Transparent Data Encryption (TDE)

We host a database for one of our applications on Microsoft SQL Azure. One of our clients was dissatisfied with the fact that TDE is not supported on SQL Azure (and the database is otherwise not ...
2
votes
2answers
734 views

How to implement password reset functionality without becoming susceptible to cross-domain referer leakage?

I have typically implemented password reset functionality by sending a link that included something like this: http://example.com/pwreset?id=userId&resetToken=superSecretResetToken On my pwreset ...
1
vote
2answers
123 views

Firewall Security vs Anti-Virus

Overview of my question I want to create a secure Window's system without the use of an Anti-Virus program. Whilst I know there are many on-demand and live-scanning anti-virus programs readily ...
20
votes
3answers
3k views

Can you recover original data from a screenshot that has been 'blacked out'?

Is there a threat from screenshots with blacked out info? That is can someone take out that after market addition so to speak? For instance I take a screen shot (using MS snipper) Then I 'blur/...
1
vote
3answers
94 views

Variable scope and security

This question is directed at the .Net framework, but would hopefully be answered to encompass many languages & frameworks. Let's assume I have a two methods, one which actually decypts data and ...
0
votes
2answers
8k views

Trying to get rid of hackers who have access to all my devices [closed]

What is the best way to go about getting rid of hackers that have gained access to all my personal computers, (both old and recently purchased) phones, and even random computers I use to simply get ...
2
votes
2answers
212 views

Does NTP leak local system time?

As I understand the paper An Improved Clock-skew Measurement Technique for Revealing Hidden Services (6/23 = pdf page 3), it implies that a NTP client leaks the system's local time because of TCP ...
1
vote
1answer
264 views

What's this type of leak detection method called?

Suppose I want to figure out which of a group of people is distributing my content without authorization. So I create several different versions of the same content, each with a unique watermark ...
9
votes
3answers
2k views

Wordpress Brute Force Attacker knows real admin Username -

I've noticed a brute force attempt on several different Wordpress installs that know the right admin user name for those respective sites... It seems very strange that the hacker would be able to ...