The old trope of garlic and stakes might keep cinematic bloodsuckers at bay, but cyber attackers are not waiting for an invitation—they actively hunt for vulnerabilities. With perimeter defences offering limited protection, identity now serves as the ultimate key. Unfortunately, it is often handed over with little resistance.
The era when robust firewalls and antivirus suites could shield your network in the manner of castle walls has passed. Adversaries have discovered it is both faster and more discreet to impersonate legitimate users than to attempt a brute force attack. Once inside, they blend with regular traffic and move laterally across systems, gathering data and maintaining access without drawing attention. Frequently, the true threat is already inside the perimeter.
Credential theft, often through phishing or the deployment of malware, remains a prevalent method. Attacks also succeed by exploiting weak authentication mechanisms or leveraging legitimate user privileges for unauthorised actions. Even experienced IT teams can be caught off guard when identity management and monitoring are neglected. Adopting measures such as multi-factor authentication, enforcing robust password policies, and implementing user behaviour analytics should be considered essential.
Treat identity as a primary concern, not merely another item to tick off a compliance list. Failing to do so risks allowing an adversary to exploit your systems unnoticed, accessing sensitive information at their leisure.
Cybersecurity now demands ongoing vigilance. It is critical to verify the identity of every user attempting access, and ensure that credentials have not been misappropriated.
Original story: https://blog.talosintelligence.com/you-have-to-invite-them-in/
