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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25 views

Data dump - realse, as insurance

Just trying to figure out the best way, to set up a data dump mechanism as a safety insurance. A timed data dump which could be only deactivated by me, and released in case of my absence (harm). And ...
1
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1answer
59 views

Pentesting a Data Warehouse?

One client has recently implemented AWS and has a EC2 instance running. We have made one scoping call and further to that they provided me with a diagram that I have modified to avoid any issue: ...
5
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1answer
25 views

Is flushing of all caches on any context switch between mutually-distrusting processes the only way to prevent cache timing attacks?

This article demonstrates a devastating Javascript-based cache timing attack that allows for cross-VM tracking of mouse movements and other activities by web pages. Is the only way to prevent cache-...
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2answers
68 views

Implications of replacing Java Applets with Client Side Websocket Server

I am no security expert, but do know some concepts. We have a enterprise web application which currently uses Java Applets to do some operations on files in Client's File system (Browse, create, ...
13
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3answers
692 views

Can Microsoft access all private data if a user installs Windows 10?

According to this Forbes article by Gordon Kelly, a condition of using Microsoft's Windows 10 operating system is to agree to the following: [Microsoft] will access, disclose and preserve personal ...
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0answers
39 views

I have to send my broken Tablet back, what should I do with my data?

The display of my Fire Tablet is broken, so I cannot do anything on the device. A member of support told me, when I remove the Tablet from my Amazon account via web browser, all data will be removed. ...
227
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16answers
50k views

SQL injection is 17 years old. Why is it still around?

I'm no techie and would like your expertise in understanding this. I recently read a detailed article on SQLi for a research paper. It strikes me as odd. Why do so many data breaches still happen ...
62
votes
4answers
37k views

Why is writing zeros (or random data) over a hard drive multiple times better than just doing it once?

Lots of different programs, such as Darik's Boot and Nuke, let you write over a hard drive multiple times under the guise of it being more secure than just doing it once. Why?
8
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2answers
490 views

With Google's new Privacy Policies going into effect soon, how can I better protect myself using their services?

From what I can tell, the gist of the new Privacy Policy from Google is that they're making a blanket policy to allow using your data between all their services, however they see fit. So now one ...
1
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1answer
96 views

Linux file information leakage

What information is kept in a linux file about the user and/or system that created it? I want to make some files publicly available, posted on another server such as GitHub or FTP, but I'd rather the ...
2
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3answers
103 views

Should public access to specific filenames and -types be denied preventively?

Is it a good idea to preventively disable (public) access to certain filetypes (by extension) and/or by filenames: in the server configuration (in case of a shared hosting server) or, as a rewrite ...
1
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0answers
27 views

File sharing solution with approval workflow [closed]

Is there any solution out anyone is aware of that does secure file sharing but with the facility of an approval workflow. A case being a person can upload a file to the secure file sharing solution ...
4
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4answers
121 views

What is the best way to explain (a non-technical person) the risk of leaking version information?

I'm wondering what the easiest way is to explain a non-technical person (read: management) why the leakage of a simple version number is considered unnecesarry/a potential risk and should be avoided. ...
3
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1answer
68 views

What percent of publicly posted databases implemented password security?

I am trying to get some statistics on databases that were a part of data breaches, namely, I would like to be able to find out what percentages of publicly posted databases (from a data breach) had ...
144
votes
6answers
27k views

How secure is 'blacking out' sensitive information using Paint?

I'm wondering if it's safe to black out sensitive information from a picture just by using Microsoft Paint? Let's take in this scenario that EXIF data are stripped and there is no thumbnail picture, ...
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 ...
5
votes
3answers
55 views

What information can be gained from an Apple device's screenshot or its EXIF data?

I often take screen grabs from my Apple devices for professional purposes (iPhone, iMac, Powerbook...), sometimes sharing them on forums, imgur or S.E. sites for technical support. What informations ...
31
votes
5answers
4k views

Is disallowing write to USB actually an efficient way to prevent data leakage?

In my organization, a group policy exists that prevents users from writing data to a USB stick. This always seemed like a bit of a pointless PITA to me, just "one of those things...". I forget about ...
0
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0answers
70 views

How could I encrypt an SD card to store data on it?

I have some data I'd like to carry with me in an encrypted form onto an SD card, so I (and only I) can access it easily from any OS (or at least Windows, OSX and Ubuntu). My idea was like: Two ...
5
votes
2answers
75 views

Is an application backend expected to potentially log sensitive customer data when in debug mode?

As I am working on a website that asks customers to enter data such as their name, address, phone number, obviously customer data that needs to be protected. I do my best to not log such data (...
4
votes
2answers
80 views

Do I have a IP leak if I use Tor and Skype/UDP?

I configure my OS so that it sends all traffic over the Tor (assume that, I configure Tor like proxy). I use Tor (which does not support UDP) and Skype (which uses UDP). My questions are: Does ...
2
votes
2answers
183 views

Block mobile tethering on android phones from Windows (DLP)

In our small organisation I have tried my best at implementing DLP by: Making sure users access all files from the server Local disks are denied access (forced to work only on network drives) ...
181
votes
21answers
24k views

How can I explain to non-techie friends that “cryptography is good”?

After that case in which Brazilian government arrested a Facebook VP due to end-to-end encryption and no server storage of messages on WhatsApp to prove connection with a drug case, it's become pretty ...
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2answers
86 views

If a hacker were to obtain a shipping tracking number what could be compromised?

Lets assume you just bought something and it is getting shipped via a major package shipping agency (such as FedEx or UPS etc.). You are given a tracking number which you can use to view where the ...
20
votes
5answers
11k views

Recover the prior contents of RAM from a turned-off PC?

I've heard that if your PC is turned off, then an attacker can recover the RAM from the last session. I find this hard to believe. How could it be done?
3
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0answers
37 views

How to mitigate risk of X11 buffer ghosting on window resize and X server shutdown

The Buffer "Ghosting" Phenomenon It is possible to observe contents of (old and currently used) graphics buffers on a monitor under certain circumstances, posing an information disclosure risk, when ...
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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 ...
2
votes
0answers
121 views

Security Questions I should be asking my developers [closed]

I am looking for a comprehensive list of security related questions I should be asking my developers. I have done some research on the net and have yet to find a great list of questions I should be ...
2
votes
2answers
108 views

Explaining information leak to Lead dev

Our lead dev tells me that this information leak from our website is "no vulnerability. Just an ugly error UI." It looks to me that the leaked information could be used to aid an attack. Does it ...
5
votes
2answers
118 views

What are the risks of sending sensitive documents that are on physical media and password protected via postal carrier using registered mail?

Background The company I work for is extremely risk averse when it comes to adopting the use of cloud services for improving business flows. We currently use a very famous search company's business ...
9
votes
1answer
588 views

I found emails and passwords on github, what should I do?

Content in question: I found a file in a public repository on Github that contains a few 100 emails, some of them with a password (as bcrypt). Verification: As I recognize several of the addresses, ...
0
votes
1answer
40 views

Unsecure FTP with Encrypted file and Wireshark leakage

Hi i was wandering if it is possible to have a password leaked to an encrypted file on an anon ftp server with r-x-w permissions. So for example i have a file encrypted using gpg and when opened on ...
1
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1answer
27 views

Why mobile applications share device characteristics with third parties?

It is known that mobile applications can share with third parties many different types of data from information about the device to search terms used in the application. I understand that search ...
0
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1answer
50 views

Does KDE System Tray Extra Items “Clipboard” have the same security threats as the system clipboard?

Does the clipboard under kUbuntu's KDE System Tray > Extra Items "Clipboard" have the same security threats as the system clipboard? The following articles point out the insecure nature of the ...
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0answers
40 views

What should I do when I find out some company user database I am listed in was leaked?

Today the antispam tool in the company I work for blocked several emails. It has been months since last time, so I took the time to analyze the quarantined messages. Since I almost never give my ...
2
votes
3answers
74 views

Is it safe to include memory addresses in a program’s output?

I’m writing a program. The input is a complex data structure in memory. The output is an HTML report that contains: (1) a representation of the structure; (2) textual annotations that refer to objects ...
9
votes
6answers
17k views

How do I securely erase USB flash drives?

I would like to know if there is a way to securely erase USB flash drives without a chance to recover data from it once it has been erased. I know, that programms like DBAN can be used to securely ...
0
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0answers
93 views

Should I blur the cached snapshot of my app?

I recently ran a security scan on one of my iOS apps that suggested I modify my apps display as it enters the background so that the screenshot stored in the cache does not expose any sensitive data. ...
2
votes
5answers
3k views

If a hacker were to compromise a GMail database

Assuming the systems that store the Gmail database is compromised what is preventing them from reading everyone's emails by looking at the data in the database? I assume nothing, and in order for ...
4
votes
5answers
3k views

Is it ok to cut some digits from the front-face of a credit/debit card?

I'm a European expat living in Asia. I usually hide my credit card at my apartment. However, I'm a bit scared about losing it when I carry it (wallet robbed or lost). That's why I already scrubbed ...
0
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1answer
96 views

Does non-persistent data ever need to be encrypted?

Does non-persistent data ever need to be encrypted? If I had a project with confidential data stored in non-persistent class variables should I be doing anything to protect this data? I am developing ...
15
votes
3answers
1k views

Is it safe to post dxdiag on the internet?

Is there any information that might be useful to damage me on the dxdiag.txt file generated by windows 7? A technical support forum from a big company (I guess they know what they're doing) asks me ...
4
votes
0answers
38 views

Major UK company seems to be handling customer & card data recklessly [duplicate]

A company I used to work for is passing customer's personal details as well as card data (number, expiration date, name, CVV2 and the contents of the magstripe thanks to a reader) through Windows XP ...
1
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2answers
395 views

How do private photos get stolen?

I'm not referring to any of the below: A spiteful partner sharing private photos of the other after editing themselves out. Someone stealing photos from a professional photographer/artist without ...
4
votes
2answers
972 views

How can I prevent private data from being disclosed outside of my organization?

I'm not looking to secure my internal network. Our company keeps sensitive customer information. How can I prevent this information from spreading outside of the company? How do big companies ...
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/...
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 ...
4
votes
1answer
163 views

Someone called my cell phone offering services about something I have been looking for in the web

I recently started gathering information about poker and poker online. I had no idea about it and I have spent about a week surfing the web (mainly using Google) and consulting different web pages ...
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1answer
134 views

How can startup companies protect their code from any intentional leakage? [duplicate]

So, how can new companies that have just started protect their source code from leaking by their employees? If it is a new company that means that the source code of the product is not so big and ...
0
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1answer
90 views

How can I ensure that only the message I sent, and nothing else reaches the receiver?

How do I make sure that the open channel I use to send a message to a specific receiver, is not used by a third party to send unwanted files and compromise the receivers system? Is there a method by ...