Defense

Defending Against Direct Authentication Attacks in Microsoft Office 365

Whilst conducting security testing and assurance activities, I went looking to show logon events in Office 365. My first query was on IdentityEvents, this led to a view of a multi month attack by a threat actor/s against a tenent, followed by exploring the rabbit hole of logs and computer systems. This blog summarises some of the methods and findings when considering threat hunting and authentication defences for Office 365. (bear with me I am tired so this might need a bit of a tune up later!)

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Leadership

The Cyber Acid Test

I’ve been working with all kinds of different organisations over the years, and I keep running into similar scenarios.  The current state of the majority of organisations security postures are simply (as a broad-brush statement) far riskier than they need to be.

Conversely there are a range of common challenges I find in almost every org:

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Threat Intel

LastPass Breach – The danger of metadata

When an organisation suffers a data breach it’s usually bad. When an organisation that stores 25 million people’s passwords that’s really bad.

There are multiple risks here at play.

Firstly, when we give people our data, it’s our risk and our choice. I’m ok with that, I chose to give lastPass my data.

My vault data might be gone, but I have a strong master password, how we interpreted the theft of the basically cryptographic materials is a bit like when we full disk encrypt a drive.

If you lose a laptop that’s got FDE do you report this as a data loss to the ICO? Or do you say, it’s encrypted so actually I haven’t lost the data per say, I’ve just lost a random (ish) bunch of 0s an 1s so I don’t count that as an incident? I’m not here to be judge or jury.

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Leadership

What is a “Winning Cyber Security Strategy”?

A winning cyber security strategy should have several key components.

First, it should involve a thorough assessment of your organization’s current security posture, including identifying any potential vulnerabilities or weaknesses. This assessment should be ongoing, with regular updates to ensure that your security measures are keeping pace with the evolving threat landscape.

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Guides

Service Security Architecture and Assurance

Have you every tried to understand the risk level of a service? Ever wanted to provide assurance to someone that “it’s been well designed, is secure from common threats, likely risk scenarios and is securely operated” etc.? have you ever tried to conduct testing against a service that is relatively unknown? Ever needed to actually do more than throw some packets at the front door? Guess what, I have. Most orgs don’t have a decent level of documentation on service architecture and security controls. And as the NSA nicely put, the way they get into networks is to know them better than you do! So in my travels I see lots of different orgs and largely there’s one common similarity, most of them aren’t well documented (docs are boring right!) and if we then make another huge sweeping generalisation, about 90% of orgs have security postures you wouldn’t want to have to defend as a blue teamer, but you might fancy if you were a nation state actor or cyber criminal!

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Education

Enterprise Technology Generalisations

I’ve waked around one of two organisations, across a load of verticals and well I see people post things online about common technology generalisations and frankly it sometimes leaves me wondering what networks they have been in, but also am I just on another planet? So, I thought I would jot down some notes on common tech I see in orgs during my business travels but also on in the ciberz! It’s not a list of everything I see, it’s just what appears in my head as quite bloody common.

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Leadership

UK laws and cyber security considerations for business

I am not a legal export! Haha get used to saying that a lot if you work in cyber and are not in fact a legal expert! I wanted to put together a list of common laws that people should be aware of when doing business in the UK, it’s just a starter for 10 and there are likely others, but this should get people started for their security awareness and security policy documentation:

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  • Data Protection Act 2018
  • Freedom of Information Act
  • Communications Act
  • Computer Misuse Act 1990
  • Investigatory Power Act 2016 (IPA)
  • Theft Act 1990
  • Terrorism Act 2000
  • The General Data Protection Regulation (GDPR)
  • The Privacy and Electronic Communications Regulations 2003 (PECR)
  • The Regulation of Investigatory privacy Act 2000 (RIPA)
  • Official Secrets Act 1989 (OSA)
  • Companies Act 2006
  • Copyright and Design patents Act 198
  • Trademarks Act 1994
  • The Malicious Communication Act 1988
  • Forgery and Counterfeiting Act 1981
  • Police and Criminal Evidence Act 1984
  • Contracts (Rights of Third Parties) Act 1999
  • Fraud Act 2006
  • Network and Information Systems Regulations 2018 (NIS)
  • Telecommunications (Security) Act 2021
  • The Bribery Act 2010
  • Freedom of Information Act 2000
  • Defence of the Realm Act 1914

can you think of any others that I should add?

Thanks Gary and Kevin and the other AVIS I can’t name for inputting!

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