Questions tagged [risk-analysis]

Risk Analysis is a practice used to identify and assess factors that may jeopardize the success of a project or achieving a goal. Security Risk Analysis or Risk Assessment could be Quantitative and Qualitative

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108
votes
13answers
42k views

Why do sites implement locking after three failed password attempts?

I know the reasoning behind not letting infinite password attempts - brute force attempts is not a meatspace weakness, but a problem with computer security - but where did they get the number three ...
99
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10answers
10k views

How to create a company culture that cares about information security?

Hardened Servers, IPS, firewalls and all kinds of defenses cannot solve security problems if people leak information without knowing simply because they're misguided. I already tried to instruct them ...
90
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15answers
15k views

How to deal with low-probability high-impact risks?

There is a strategic question that we are banging our heads against in my IT department, which essentially boils down to this: There is a type of attack against our systems that can cause a lot of ...
56
votes
11answers
10k views

Why is it bad to connect internal systems to the Internet?

We have an intranet system we use to book, track and process invoices for our core business. My boss would like to move this system to the Internet to make it "accessible everywhere". However, I feel ...
44
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5answers
6k views

What's the danger of having some random, out of my control, JavaScript code running on my pages?

My website pages reference some JavaScript code from a third-party CDN (analytics, etc). So I don't control what code is there - the third party may change those scripts at any moment and introduce ...
41
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4answers
3k views

Evaluating the security of home security cameras

My parents have a vacation home out in the country and are looking to setup a home surveillance system for remote viewing. I've heard that there can be serious vulnerabilities in these products. What ...
38
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8answers
12k views

Why should browser security be prioritized?

From this answer about browser security: time to update if you really care about security So if every other software and functions I need can work on a 32-bit OS, I guess the only reason for ...
36
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5answers
4k views

How do you manage security-related OCD (i.e. paranoia)?

I did a quick google before asking this, and came up with the following article, linked to from Schneier's blog back in 2005. It doesn't really answer my question though. As society has crossed into ...
34
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7answers
6k views

What are the real physical risks of casual social media publishing?

aka "how to scare my family into stopping publishing their life online?" I do not publish personal photos / opinions publicly online as a rule. I never gave hard thoughts about that but I believe ...
27
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7answers
7k views

Is ignoring a threat you cannot defend from a valid strategy?

Given that you sometimes can not defend from a form of threat, is it then valid to ignore said threat? Instead of defending from the threat, just mitigate the symptom. An example of this comes from ...
17
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3answers
2k views

How to evaluate a password manager?

How can we quantify the trade-off between password aggregation and convenience? Password managers such as lastpass are convenient, but aggregation of passwords into a common store may reduce security....
16
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12answers
2k views

Is this much distrust really necessary?

In IT Security and computer power users there seems to be an excessive amount of distrust. They don't do anything or use anything because of this distrust, or use what seems like an excessive amount ...
16
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4answers
373 views

How serious are security concerns of wireless healthcare devices?

Back in 2008 a wireless defibrillator was shown to be hackable. At this year's Black Hat conference a presenter showed exactly how to hack into a wireless insulin pump. Both of these demonstrated ...
14
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3answers
568 views

What risk analysis methodologies should I use?

I've heard of FAIR, and that seems pretty great. What other methodologies are there? How do they work? What are their benefits, and their drawbacks compared to others? When is each appropriate? ...
14
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7answers
2k views

What risk rating models are used for calculating risk scores of web vulnerabilities?

What risk rating methods, models, assessments or methodologies are used for calculating or estimating a risk score of vulnerabilities (for example, like described in the OWASP top 10) and which of ...
13
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5answers
45k views

How can I detect backdoors?

I have a machine running Mac OS X and I suspect there may be a backdoor installed. I know that I could take it to a professional security firm for analysis, or nuke it from orbit, but I'm interested ...
13
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3answers
20k views

Security analysis of Dashlane

I've been asked by a user whether I would recommend using the Dashlane password manager. I'm aware that other password managers have had some significant security problems, including XSS and CSRF (...
12
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3answers
13k views

Is CentOS a good choice from a security perspective?

How secure is the CentOS Linux distribution? I noticed there were times when there were no up-to-date patches for some version of CentOS (e.g., 5.6). I read this on some mailing list that I can't ...
12
votes
2answers
8k views

WireGuard VPN: how safe is it for production in its current state?

In our project we had to build a VPN to get through to computers residing behind NAT. I never did it before. While looking for suitable software I came across WireGuard which claimed to be very simple....
11
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3answers
449 views

How to calculate our application security debt?

Application security debt has some similarities to technical debt but there are few differences that we need to think about when deciding if our security debt load has gotten too high and needs to be ...
11
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2answers
2k views

Looking for an open risk assessment methodology

I'm looking for a fully open quantitative risk assessment methodology. Most of the methodologies have usage or licensing restrictions placed upon them. I define open as methodology covered by ...
10
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0answers
101 views

Should the risk of antivirus products be reconsidered in light of the TrendMicro critical bug report [closed]

Tavis Ormandy of Google has recently discovered a critical TrendMicro design flaw identified in this bug report - TrendMicro node.js HTTP server listening on localhost can execute commands. The bug ...
9
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3answers
3k views

Is "Discoverability = low" an acceptable reason to reduce the risk of a vulnerability?

The outdated DREAD risk model (wikipedia) lists Discoverability as a criteria for judging the severity of a vulnerability. The idea being that something which is not publicly known and you would be ...
8
votes
1answer
443 views

Is exposing website performance data a security risk?

I am currently adding a subsite to some websites that allows me to monitor performance data live as the server software perceives it. The data is mostly stuff like amount of memory used, memory ...
7
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5answers
4k views

What are the risks associated with SSL interception in an Organization?

If an SSL interceptor is installed for security reasons in an Organization, and a certificate from intermediate CA is installed on all domain machines, what kind of risks this setup presents?
7
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4answers
334 views

How to choose/compromise between data protection, and device recovery?

I'm sure many of you have probably seen (online or in-person) the DEFCON 18 presentation, demonstrating what can happen if you steal a hacker's computer. For those who haven't, the link is below. It'...
7
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2answers
2k views

Should content delivery depend on FCrDNS (forward-confirmed reverse DNS) look-ups and why?

First, let me clear that this isn't a duplicate of Does deliberately wrong information from a DNS server violate standards generally accepted good practices? thread, as I'm not interested in legal ...
7
votes
1answer
388 views

What theoretical risks are posed by compromised 5G infrastructure?

A certain large Asian company and leader in 5G infrastructure has recently been accused of being compromised by its authoritarian government. Aside from the fact that it's nearly impossible to audit ...
7
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3answers
2k views

Risk Control - Ignored risks and accepted risks

Some say that ignored risks as part of an organization's behavior are much worse than accepted risks. I would like to test that axiom (in the eyes of some). When I am handling a risk and I choose to ...
6
votes
2answers
261 views

What is as CISOs job, exactly?

The company I work for (kind of a startup) can't afford a full-time chief information security officer (CISO). So the boss is asking the security aware people in the team to work together to do a ...
6
votes
1answer
272 views

Attack tree file format?

Wikipedia lists five software packages for creating/editing/analysing attack trees. These software packages do not seem to have settled, between them, upon an agreed file format for attack trees. ...
6
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2answers
3k views

Annual Rate of Occurrence (ARO) and Exposure Factor (EF) Data

I'm calculating loss expectancy (SLE/ALE) but where or how does one get data on annual rates of occurrences for various things? From simple hard-drive failure rates to something complex like the ...
6
votes
3answers
158 views

Security Testing Methods for Enterprise Level

I have been asked to perform risk assessment for a company. The scope covers about 100 applications and in various business units. Major task is to assess currently implemented security controls and ...
6
votes
2answers
563 views

How to calculate the risk rating of a feature?

I'm working on a threat modeling/architectural risk analysis (ARA) methodology for the organization I work for. Our business consists of one major product (developed by ~500 developers over a decade). ...
5
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2answers
759 views

Stolen Laptop - Next steps

My laptop (modded 2007 Macbook Pro) was stolen 2 days ago when I didn't pay attention to my backpack in a tourist spot in Europe and while I'm quite certain they won't have much use for it (the apple ...
5
votes
3answers
1k views

How can I determine whether a website somehow protects against brute force attacks on my password? (assume I can't create an anonymous account)

After the hack of Mat Honan I studied my own laundry list of accounts I have at the numerous web sites I use. There is one fact that stands out: Many of the websites severely restrict the size and ...
5
votes
2answers
6k views

How to convert risk scores (CVSSv1, CVSSv2, CVSSv3, OWASP Risk Severity)?

Is there an accurate method or formula to convert risk scores between the OWASP Risk Rating Methodology (Overall Risk Severity) and the CVSS v1, v2 and v3 models) base score)? As well as converting ...
5
votes
2answers
3k views

WireGuard: what's wrong with this automatic IP assignment

WireGuard is extremely simple and fast kernel-space VPN based on modern cryptography. I want to use it in production and need automatic IP assignment for new peers. The project provides two short ...
5
votes
2answers
4k views

Skype security concerns on an enterprise network

I am trying to write a security opinion that may influence policy in the future in the Enterprise-grade network which I work to protect regarding the use of Skype on the networks, and security risks ...
5
votes
1answer
201 views

How to help users manage password portfolios based on risks of compromise?

A framework for modeling password management risks and costs, and the beginnings of a good strategy for users to help them manage passwords for their often large portfolios of accounts is outlined in ...
4
votes
1answer
15k views

IPS fail close vs IPS fail open, what are the risks and benefits?

If a desicion is to be be made on selecting a mode of fail for an inline IPS that is protecting servers, what are the criteria that should be considored for selecting one of the failure modes: 1- ...
4
votes
3answers
616 views

Where can I find a collection of Threat Models?

I found a very nice SSL Threat model on this web page and would like to find more on different topics. How would I go about locating more images like these? Is there an organisation or website I ...
4
votes
3answers
4k views

Security Assessment vs. Risk Analysis

What the real difference between IT Security Assessment based on ISO 27001 (or in general other international standard) and qualitative risk analysis? In some way the approach is much similar - ...
4
votes
3answers
414 views

Information Security Risk Analytics

The company where I work at is evaluating different risk analytics solutions to purchase, but one of the security guys introduced the idea to actually build our own internal platform/engine. I have ...
4
votes
1answer
2k views

How are CVSS scores used in security risk management products?

From CVSS v2 complete guide : "Security (Risk) Management: Security Risk Management firms use CVSS scores as input to calculating an organization's risk or threat level. These firms use ...
4
votes
1answer
11k views

How to calculate Exposure Factor?

How can I calculate a single loss expectancy without a given Exposure Factor? Can someone please explain me?
4
votes
1answer
2k views

SCADA, ICS Specfic Testing Tools and Methodologies

I have been contracted to perform a security risk assessment that relates specifically to ICS and SCADA systems. I have performed many IT security risk assessments, however, I am new to assessing ...
4
votes
1answer
130 views

How can I do a maintainable and significant risk assessment in an organisation with thousands of assets?

The problems I see with the typical risk assessment are as follows: Maintaining the list of assets updated Maintaining the status of the treatments updated and the risk level coherent with that. ...
4
votes
1answer
552 views

Why doesn't CVSSv2 consider XSS to have a confidentiality impact?

From the CVSSv2 specification: SCORING TIP #2: When scoring a vulnerability, consider the direct impact to the target host only. For example, consider a cross-site scripting vulnerability: the ...
4
votes
1answer
2k views

IP address filtering vs web application security

We have a web application behind a firewall that requires no user authentication. If we open up access to this application via the firewall to a small list of IP addresses what is the risk of ...