Confidentiality is the property of maintaining the secrecy of an asset. In other words, confidentiality means protecting against the threat of disclosure. It is one of the three key security properties of an asset, along with confidentiality and availability.

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34
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What are the purposes of these security policies?

I work at an IBM lab and there are some security policies that I do not understand the point of. When I ask why we do them my boss simply says it's policy and avoids answering the question. We must ...
26
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2answers
3k views

Why can a Tor exit node decrypt data, but not the entry node?

Me -> Node A -> Node B -> Node C -> destination The documentation on Tor always states that only the exit node C can see plain text data. How is this possible without me talking to Node C ...
18
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3answers
1k views

Is passing sensitive data through the process environment secure?

Recently I have been looking for the possibility to pass sensitive information from one process to another (at process startup time) without passing it through the command line or without using a ...
15
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6answers
7k views

Does SSL/TLS (https) hide the urls being accessed [duplicate]

Suppose I type this in my browser https://www.mysite.com/getsecret?username=alice&password=mysecret and an attacker is watching all traffic from me to my ISP. What information is protected by ...
15
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7answers
7k views

Getting rid of a large quantity of paper

Say you were in charge of getting rid of a large quantity of paper - up to 1,000 in a row. It can't be used as scratch paper because it contains confidential information. It also can't be outsourced ...
12
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5answers
1k views

Is there a digital “safety deposit box” equivalent?

Digital safety deposit boxes: do they exist? if yes, are (any|they) trustworthy? There are many bricks and mortar financial institutions where one can rent a locked box in a locked room and be ...
12
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4answers
3k views

Why encrypt data in memory?

I saw that KeePass not only encrypts its password-database-file, it also can encrypt the passwords it holds in memory. This is just an example. I thinking of a new project dealing with sensitve / ...
12
votes
3answers
472 views

Timing Safe String Comparison - Avoiding Length Leak

Let's say that we're building a generic timing-safe comparison function for general purpose use. Making it so that it is safe when both strings are equal length is pretty well known. However, what I'm ...
10
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2answers
1k views

How might the U.K. Government's proposed internet surveillance equipment “bypass” encryption?

http://www.channel4.com/news/black-boxes-to-monitor-all-internet-and-phone-data http://rt.com/news/uk-privacy-internet-freedom-186/ 'Black boxes' will be installed by internet services providers ...
9
votes
3answers
5k views

Storing Credit Card Numbers

I'll be making a website with a membership type of option for the website, and I'll be most likely using Authorize.Net to make the transactions, however, I need to know what kind of encryption I can ...
9
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3answers
3k views

Is it possible to get all the data I send through wifi?

Is it possible, that the network administrator (wpa2 wifi network) can log all the data the users send and then get password out of it? I know it is not possible to get the password if I'm surfing ...
9
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1answer
364 views

Can all the (other) recepients of a PGP encrypted message be identified?

Does an encrypted message contain any information about whom it is encrypted to, or at least to how many recipients? And if so, is it at least only obtainable for other recipients or for just anybody? ...
8
votes
6answers
968 views

when is it safe to click through an SSL warning message?

How does a user know if it's safe to click through scary browser warnings about SSL certificates? Ideally, a user should never need to click through these warning messages, but sometimes honest ...
8
votes
4answers
1k views

Keyboard sniffing through audio recorded typing patterns

I've been thinking about this for a while; I know people are aware of wireless wiretapping of keyboards. However, has there been research on how to wiretap keyboards based on typing patterns? I'm ...
8
votes
1answer
211 views

What practical uses are there for the AD feature of “Confidential Attributes”

Are any applications (off the shelf, or internal) leveraging Active Directory's Confidential Attributes? Would you store sensitive information here such as a private key, or a salt here? I'm ...
6
votes
6answers
862 views

Implications of securing data in RAM

Someone told me that his company is storing all application data (at least the sensitive data I guess) in RAM for security. Their application runs for long periods of time, so data stays in memory for ...
6
votes
4answers
1k views

Is it possible for a third party to sniff data off the line to an ISP and determine what the user is doing?

Can somebody hack the line between my router and service provider and monitor what I'm doing online and what sites I'm visiting?
6
votes
3answers
65 views

Patient Hashes for Compression and Security

Are there any front-running approaches to using server-generated hashes to encapsulate patient condition in a concise manner while maximizing security? For example, a system to represent current med ...
6
votes
2answers
276 views

Can a web application administrator access the database of that application?

We have a web application linked to a database. The database is secured but contains unmasked confidential numbers. Can a normal administrator who can access the application, access those numbers in ...
6
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2answers
445 views

Where to put private files on a shared web server

I continually hear and read people warning against the perils of placing proprietary information or confidential documents within the web server root directory. If I am on a shared server, I cannot ...
5
votes
4answers
6k views

Bank account number and account holder in check exposed?

I'm not sure if this is standard practice in all banking institutions but almost all banks where I've received checks the account number of the issuer is exposed (some even the account name). Isn't ...
5
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2answers
351 views

System for Mutual authenticaion and confidentiality

I am looking for a protocol where there needs to be mutual authentication between client and server. For example server should connect to a particular client only. That is client should authenticate ...
5
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2answers
486 views

Android side channels: what can one app observe about other apps?

What information can a malicious Android app observe about the behavior of other apps running on the same phone? In more detail, suppose app M is malicious and is running in the background. Suppose ...
5
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2answers
1k views

How eavesdropping will be performed how can I prevent from eavesdropping

I believe that eavesdropping in a man in middle attack and the message is passing from the client to server the man sitting at ISP or network hackers can look at what message I am sending. Heard that ...
5
votes
2answers
859 views

If encrypted data in a database are accessed by application, does that mean that the application has the decryption key?

I'm using an application linked to a database which holds confidential data (numbers). According to the developer, this data is encrypted. However, i can easily generate a report that will show the ...
5
votes
2answers
330 views

Oracle Internet Directory (OID) hardening

What are best practices, recommendations, required reading for securing/hardening an Oracle internet directory? note: OID is compatible with LDAP version 3.
4
votes
5answers
224 views

Is there any security value of creatively naming folders containing sensitive files?

A friend of mine asked me if he could sign his tax returns without printing them out. While helping him, he insisted on naming the folder containing images of his signature and initials a completely ...
4
votes
3answers
404 views

Does GOOD Dynamics Proxy comply with EU data legislation?

My client is excited about GOOD technology; it allows them to have controlled access to business applications & email from BYOD (bring your own devices) and will enable a more mobile workforce. ...
4
votes
3answers
995 views

storing the third party credentials in the database/some secure place

This question is about storing the third party credentials in the database/some secure place so that it can not be accessed by only authorized user. Our system connect to the third party system using ...
3
votes
1answer
1k views

Who is the creator of the CIA triad?

The Information Security goals - Confidentiality, Integrity and Availability (CIA) - are often referenced to as the CIA triad. As I am writing on my master thesis, I am wondering to which resource I ...
3
votes
2answers
230 views

Sharing encrypted data

I have a web app that is storing information related to a organization that I would like to encrypt but share amongst organization members. I would only like the members of the organization to be able ...
3
votes
2answers
3k views

How effectively can ISPs detect illegal file sharing?

Recently the USA passed a law requiring ISPs to spy on their customers' internet connections to check for illegal file sharing. I assume that they would do this by sniffing packets, but doesn't this ...
3
votes
2answers
246 views

Confidentiality and integrity for web session

When the client authenticates with our service, he is issued an opaque "token". This token includes the information, that identifies the client and some other information about the client ("payload"). ...
3
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2answers
2k views

How Is It Possible For Hackers To “Dig Up The Dirt” On People?

Like the title says, I was wondering how its possible for hackers to "dig up the dirt" and get peoples personal information such as address, credit cards, bank accounts, social insurance number, etc? ...
3
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3answers
2k views

Google App Engine Security

I am writing a master thesis concerning security of certain applications, and as a part of it I want to write a web app on Google App Engine and test how secure it is. Does anyone know if there was ...
3
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4answers
176 views

Is a pre-shared secret enough for encryption?

Suppose: A and B are initially configured to possess the same key. -- the key is only known by the pair -- no key needs to be public A has an algorithm, a, that takes a message(plain ...
3
votes
2answers
706 views

Shutdown: Clear virtual memory pagefile

I was reading about Windows Local Policy of "Shutdown: Clear virtual memory pagefile". I need some clarification on this brief policy description: What do it mean by operating system that allow ...
3
votes
3answers
167 views

In what situations are web services required to protect confidentiality of user information?

I know that if a web application needs to be PCI-DSS or HIPAA compliant the user personal identifiable information (e.g. user password, etc) needs to be kept confidential. Under what other situations ...
3
votes
1answer
457 views

iPhone iOS 7 Encryption at Lock Screen

Following this topic, I have a question about how the OS and apps access data while the phone is locked. Particularly in the case of iPhone 5S running iOS 7. When the device is locked, what allows ...
2
votes
3answers
4k views

Someone keeps using my email address. What to do?

I have had a GMail ever since it was created, so it's an email address that is easy to remember, but also easy for somebody else to get confused with. Since I'm not going to post my email address ...
2
votes
5answers
219 views

Is DRM considered Confidentiality, Integrity, Availability, or some combination of the three?

I was discussing software trial time limit enforcement with a colleague and the idea of CIA came up. Do stricter enforcement techniques increase confidentiality at the expense of availability? (for ...
2
votes
2answers
963 views

Is traffic sent by Mouse Without Borders encrypted?

Some of our users have installed Mouse Without Borders and I wanted to know if it is possible to intercept the traffic being sent between the two computers and read it in some meaningful manner. I was ...
2
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2answers
832 views

Keeping valuable algorithms secret

Given a securities trading algorithm that is very effective and thereby very valuable, how do you keep it secret and protect it from theft or copying? What techniques or architecture is the best? The ...
2
votes
1answer
227 views

Securely notify users about account changes

I am developing a web application (using PHP) and I am wondering what the best way is to notify users that someone updated their account information? The information that can be updated includes: ...
1
vote
3answers
87 views

Is PGP suitable for encrypting webservices?

I would like to know if I can use of PGP to ensure SOAP webservices confidentiality? I don't want use SSL, it's kind of slow mechanism to make a tunnel for high throughput data transaction. I though ...
1
vote
2answers
61 views

A manual function for hasing identity?

I hope you won't close the question. Even though there are no computers involved, it is still about information and security, and I think that security experts are the ones who will be able to help ...
1
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1answer
119 views

SSL/TLS in-memory data interception after decryption

In a scenario where a client is reading data from a server over SSL/TLS and then encrypts that data using a client-side symmetric key before saving it to the disk, how susceptible is the data to an ...
1
vote
3answers
104 views

Question: How to plan email policy for start-ups?

I'm a part of a software start-up. I've the role of IT admin as well as requirement gathering (business analysis). Right now we're a team of seven people and we all are in the 'core team'. Now we're ...
1
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1answer
175 views

Does Google Analytics collect any information about the contents of the web page?

If I enable Google Analytics on my web application, does the Google Analytics Javascript collect any information on the web page (any of the content on the page)? Does it collect any information ...
1
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1answer
148 views

Security Standards for storing private customer data

A certain government regulation in my country mandates all non-resident donors to provide a copy of their identification (usually, the passport). So, we ask the donors to upload a copy of their ...