A set of requirements regarding password creation, storage, and usage. These requirements often constrain several characteristics of passwords. So, a password policy is a set of rules designed to enhance computer security by encouraging users to employ strong passwords and use them properly.

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930 views

Is it ok for software to store passwords locally in plain-text?

There are already plenty of questions about what to do when websites store plain-text passwords. But this one is a little different. I use a piece of open-source (see below) software for playing ...
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2answers
261 views

Is there a site like plaintextoffenders.com that shames companies that force insecure passwords?

I recently came across http://plaintextoffenders.com/ and I liked the idea. I wondered if there was a similar site that shames websites that force insecure passwords? I personally have a list of a ...
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344 views

How to prove a password guessing theory from Matt Bishop's book “Introduction to Computer Security”

First, this is not a homework problem. This is a problem from Matt Bishop's book "Introduction to Computer Security" which was used as one of the textbooks for a Computer Security class I took last ...
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2answers
238 views

Home “datacenter” security, where and what to look for?

This is a question to learn more about security management and physical security. I'm running a small serverroom in the basement at home, mainly as testbed for attacks I dont want to try on live ...
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1answer
276 views

Computer team's password change time different from other users?

We need to determine a password policy for our organization. All users, in general, will have 90 days until they will have to change their passwords, complexity required and passwords need to be at ...
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1answer
80 views

Forgot Username/Email - Do extra credentials equal enough to log the user in?

I am working with another UX guy and he's let me know that there have been some studies surrounding the fact that when a person goes through a "forgot username/email" process, they enter in extra ...
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3answers
439 views

What implementations are possible for dual control?

An organization requires employees to use 2 person authentication in some scenarios. That is, when accessing, say, a server, secret knowledge from 2 people should be used for authentication. No one ...
4
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1answer
114 views

Protecting SSH service with many inexperienced users

One of the universities I know has a rather unique password policy. They issue shell accounts to all computing students with strong passwords that are unchangeable. It is done via the passwd -n flag ...
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2answers
439 views

Password strength metrics

In the question Source code as password I suggested using a combination of entropy and as @Lawtonfogle put it 'meatspace difficulty'. As suggested in the xkcd comic correct staple horse battery is a ...
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265 views

Why is password strength often underestimated and uncertain in the context of password hashing?

An aspect of security has bugged me for a long time: Why is there positive certainty about the importance of hashing algorithms and salts, but password strength is either never mentioned at all or ...
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221 views

Guidance for “image based” password reset challenge

Thycotic has a Password Reset Server that allows the user to select from several images. What general guidance is there for an image-based password reset challenge question? Examples may include ...
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3answers
96 views

How can I write a good corporate password policy?

Our company works in health care, and we've written a corporate security policy, including passwords. Something that I noticed about the policy and have commented on, it says the password should not ...
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102 views

What is the argument for the fairly prevalent “No more than n repeating characters” password rule?

So, I understand why most commonly used password policies are used. N character minimum? No low hanging fruit left for brute force attacks. N character maximum? The database field can only be so ...
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1answer
331 views

How does the mobile security technology APNS and 3LM work?

APNS is an iPhone technology that assists with mobile push. 3LM is a BIOS-level security technology embedded in certain Android phones. I recently got off the phone with Boxtone and they said they ...
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7answers
3k views

Is it possible to detect password length from hash? Does doubling your password add more security?

Assuming a service doesn't store a plain text password, am I right in saying that the answer to this question depends on the service? On a bad service, the hash length is related to the password ...
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4answers
560 views

Is there any explanation (other than storing plaintext) for case-insensitive passwords?

I've come across a few organisations stating that passwords are case-insensitive. Obviously this is ridiculous, and a gigantic red flag from a security point of view. Is there any explanation for why ...
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4answers
719 views

How to tell if a site is securely storing passwords? [closed]

A site I frequent has a policy to make you change your password every 90 days. That's a cool policy, but I stumbled upon an old xkcd and facepalmed myself, because lots of doxing happens on this site. ...
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4answers
195 views

Generate DB Password from license key - a good idea?

There's this web app which has a SQLServer database, and the connection string it uses to access the database is not stored in any configuration file. Rather, the designers decided it would be a good ...
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5answers
306 views

Is there any good (or less bad) way to handle a web portal or website with awful security?

Background: I'm facing a situation with an online site I must (for the immediate time being) use for financial and HR-related matters that just sucks. In every sense, but security in particular. As ...
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4answers
167 views

Is it good practice to mandate input action on the password field in a webapp?

I am of the school of thought that says you should never have the browser "remember your password" because if you use it often enough, you will be able to retain that piece of information. I now want ...
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2answers
260 views

Doesn't adding requirements to a password, such as must contain 2 digits, decrease the strength? [duplicate]

Possible Duplicate: Doesn’t imposing a minimum password length make the password weaker by reducing the number of possible combinations? Doesn't any constraints added to a password policy ...
3
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2answers
230 views

Adding a new user: email temp password vs link with token

I'm a developer working on a website for the first time and have a question about new user activation. The way our site is setup now a user creates a new account and they get emailed a temporary ...
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2answers
184 views

What exactly is the impact on security when forcing user passwords to contain a particular character?

Some years ago a sysadmin of large computing centre (on a campus) enforced the password of every single user to contain the character $ at an arbitrary position. They soon dropped this policy but I ...
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4answers
1k views

Best practice for forgot password form, ok to leak that a given e-mail is invalid

On our forgot password reset form, is it ok to leak that a given e-mail address entered is invalid? Or should we always just return success and check your e-mail, even if the e-mail is not valid. I ...
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2answers
2k views

What are the pros and cons of using a password safe instead of writing passwords on paper?

Many companies have policy again writing passwords and paper and I wonder if there reasoning is sound. Is it always better to use a software password safe than writing passwords on paper? Here are ...
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4answers
159 views

Password Policy: Issue random generated passwords / Let the user choose a password

I'm currently thinking about a new password policy. Originally I wanted the users to choose a password that is X digits long, contains numbers, special chars, lower and upper case,... but then I did ...
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126 views

Are there risks associated with a strong password reuse for disk encryption?

I understand the risks of password reuse when we share the password with 3rd parties as perfectly discussed under this question: Is password reuse a problem if the password is very strong? However I ...
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2answers
223 views

Are weak passwords acceptable for internal development?

We have a number of internal development environments that use weak passwords in the Auth and SQL components; particularly using passwords such as "password" or "Password1". These are obviously ...
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3answers
281 views

When changing a password, does it have to be completely different?

When changing a password how important is it to have a significantly different one? For example is it bad to reverse the sequencing of the old password to make a new one or change a few numbers?
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3answers
94 views

how is strength of password calculated from standard keyboard patterns?

In password strength calculator is there an algorithm to determine the keyboard pattern? there could be thousands if not millions of patterns that could be generated with a standard qwerty keyboard. ...
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1answer
653 views

Updated list of bad/overused passwords [closed]

I am building a website, and I'd like to make sure the users don't put an overused password like password or password1.. or any of these Is there a place that constantly analyzes hacked websites ...
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3answers
458 views

Same User, Different Access Points, different passwords?

We have a system (e.g. purchasing) where there are multiple access points. One is a back-end desktop application only accessible by employees within the LAN, the other is an Internet accessible Web ...
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3answers
136 views

Account-lock security policy (username/password)

I am currently working on an application with regard to applying a security policy to the application. We are locking the account after X failed login attempts in Y minute. The account will be locked ...
3
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1answer
1k views

Why do some large companies still store passwords in plain text/decrypt-able format? [closed]

In the last couple of weeks I've come across two fairly large companies who seem to not have stringent password security: Tesco - they store passwords in an "encrypted" format, yet they can decrypt ...
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3answers
193 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
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1answer
319 views

Is a One Time Password Scheme based on Diceware viable and secure?

I recently learned about diceware and was thinking about how it could possibly be used to create a one time password scheme. I'm thinking S/KEY is probably more appropriate, but would a system that ...
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0answers
248 views

Similar passwords can't be used again. A sign of unhashed password storage? [duplicate]

In my school everyone must change their password every six months. The new passwords cannot be the exact same as the old one, this make sense, however many of my peers often complain that they need ...
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3answers
7k views

What do I need to do to secure log-in and registration for my website?

What security features do I need to have in-place to ensure that my website log-in and registration forms are secure?
2
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3answers
257 views

Is it possible to make cracking a password pointless to an attacker with database access?

I've been reading information on making passwords secure, but what are the reasons an attacker would want to put effort into getting the original password? If an attacker does indeed have a copy of ...
2
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3answers
454 views

Strategy for updating stored passwords to more secure hash? [duplicate]

I know that we cannot update our hashed passwords without having the plain text password to re-hash. When a member logs in with login/password, we have the plain text, so that gives us an opportunity ...
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6answers
2k views

Does Username + Password + Pin improve login security?

I've been asked to add a feature to a website to require a pin for users. The site currently uses username and password. If a user wants to change their password they need to supply the current ...
2
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4answers
247 views

If A Password Is Unique, Does It Really Matter How “Strong” It Is?

People seemed to find this "If a Password is Super-Strong Dose it Matter if It's Unique" question very interesting, but it actually reminded me that the converse one is interesting, too: If you use a ...
2
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2answers
128 views

Is logging a hashed password safe?

I'm creating a login module for Wildfly by extending org.jboss.security.auth.spi.DatabaseServerLoginModule and using log4j2 for debugging. I've gotten into the habit of using log4j2's Logger.entry() ...
2
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3answers
774 views

Password Security and ocl-Hashcat-plus

I recently read the Ars Technical Article about new features in ocl-Hashcat-plus. In light of questions like: Long Passwords: How are they more secure? and XKCD #936: Short complex password, or ...
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3answers
298 views

At what point is password complexity “safe enough”

Obviously the best passwords will be highly complex randomly generated passwords stored in a password vault. For the average user though, this might be a slight overkill. Assuming that the average ...
2
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3answers
143 views

How to make an outbound request to users to update their passwords?

Clearly it works best if the request to update a password happens as a response to an inbound request to access a known system, but how do you make an outbound request to users to update their ...
2
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2answers
330 views

Storing lots of passwords that different levels of employees need access to

I am wondering what other people do for storing passwords. Our current model at my employer is fundamentally flawed in my opinion, so I am trying to see what other people do so I can select the best ...
2
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5answers
333 views

Is accepting old passwords a bad policy?

This question is inspired by an experience I had today with online banking, as follows. One year ago I opened an online deposit account. (Without naming the bank, I will say the company is currently a ...
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3answers
460 views

Account lockout with human interaction required to unlock

I just got locked out yet again from my university's system for typing the wrong password twice, then mistyping the correct one by accident. Now I have to call the helpdesk or go there myself to reset ...
2
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2answers
297 views

Too many passwords?

Is it necessary to have hard drive and bios passwords if you also have full disk encryption, or maybe at least the hard drive password is unnecessary because there would be two passwords protecting ...