Q1. Darktrace has described ransomware as being the top use case for its Autonomous Response technology. Why is that the case? Why is self-learning AI so crucial for dealing with the ransomware threat?
Ransomware is a particularly effective and fast-moving threat. It has been around for over 20 years, and yet it is still slipping through defenses and paralyzing companies, even companies that we traditionally assume to be secure, with robust defenses. Yet when considering how to respond to ransomware, the key thing to remember is that threat actors have already gained access to your system, whether that be via phishing email, a vulnerable website, or unpatched software, and it is too late to reverse the process.
Therefore, to stop ransomware, your philosophy needs to change from 'how do I keep the bad guys out', to 'the bad guys are inevitably going to get in, so how do I spot a threat once it's inside?' This mentality, namely the assumption that you have already been breached, is fundamental to how defensive AI technology works.
Defensive AI is based on three core values:
- Preventative security tools aren't enough because attackers will always find new vulnerabilities.
- Signature-based defenses aren't working because we constantly see novel variants of ransomware.
- Human security teams cannot act fast enough to contain ransomware – they are simply outpaced.
Conversely, self-learning AI does not work by relying on rules and signatures - it works by learning the normal 'patterns of life' for the organization – including its users, devices and applications – and identifies every step of ransomware attacks, within seconds, as they deviate from this norm.
Critically, Cyber AI takes targeted action to neutralize the ransomware, ensuring that an organization's response is proportionate and doesn't incur damaging and unintended knock-on effects. By stopping ransomware in its earliest stages before it has had a chance to spread, the question of whether to shut down critical systems or pay the ransom – is taken out of the equation.
With proportionate Autonomous Response that is built on self-learning AI, organizations can build cyber resilience to fight back against the full range of machine-speed attacks – wherever they strike.
Q2. Enterprise organizations have begun using AI-based technologies, such as those from Darktrace to fight cyber threats. What happens when threat actors begin using AI-based approaches more widely to carry out attacks? What capabilities are organizations going to need to defend against AI-based cyber weapons?
AI-powered attacks are one of the biggest fears within the security community. When it becomes a reality, which may be very soon, 'offensive AI' is going to bring about a paradigm shift to the attack landscape.
What this means is that at some point in a campaign there are much fewer human hands on the keyboard than today – or none at all. This can be done in a relatively simple way – for example using more simple techniques like natural language processing to automatically gather context on the Internet for social engineering attacks all the way to more sophisticated methods like malware deciding on the best ways to move laterally during an infection by itself.
We'll see this in various ways. Firstly, the sheer number of cyber-attacks will explode, because it will be so much easier to orchestrate and automate campaigns. The speed of attacks will also increase dramatically. We've already seen this a little with ransomware, and how quickly it can now encrypt files, and in attack life-cycles generally, even from two years ago. We're going to see more threat actors on the scene. AI will make it far simpler to launch campaigns, which means that even low-skilled hackers will be able to operate sophisticated tools.
Additionally, in the near future, we can expect more sophisticated AI to be used in more subtle ways - for example to create highly convincing emails that impersonate trusted contacts, or to help malware target high-value data sets within a corporate network.
Security teams already struggle to keep up with incidents and to navigate the sea of false positives which are churned out by sub-standard security tools. When cyber-criminals begin to use AI, human response will no longer be an option.
This is not an issue which can be resolved by throwing more humans in the mix, and anyway – we don't have the humans to spare. Instead, the way to defend against this will be by fighting fire with fire. AI against AI, algorithm against algorithm. And that's what we at Darktrace have been preparing for.
Q3. What does Darktrace plan on highlighting at Black Hat USA 2021? What's your main messaging going to be at the event?
We're going to focus on three main areas: self-learning AI, how to protect yourself in the cloud, and AI-powered Red Teaming.
The digital world is more complex than ever. And when systems are complex, that makes them vulnerable. We've seen this in the widespread adoption of cloud and SaaS applications in the last year – from Zoom to Microsoft Teams to SharePoint. And this shift to the cloud, and to more complex ways of using and relying on technology, is here to stay.
In this new world, which brings with it new weaknesses and new methods of attack, AI-powered security is crucial in protecting your digital company. Self-learning AI can discover unpredictable attacks as they emerge, without relying on any previous knowledge or rules. Autonomous Response can keep normal operations running at all times, neutralizing threats in seconds.
AI Red Teaming is a really exciting development in the security industry. We've spoken about how offensive AI will be the next big security challenge. With AI Red Teaming, we can emulate the power and speed of an AI-augmented attack, to help autonomously identify security issues, and help to remediate them. This will be a huge help to organizations in having the resilience necessary for when a real attack comes along.