Many cyber incidents do not begin with a technical breakthrough against a network. They begin with someone gaining access as a real user. For most businesses, that is an uncomfortable shift because it means the most valuable “entry points” are often your people, their sign-ins, and the permissions attached to their accounts.
Identity-based cyberattacks target the methods that prove who someone is, such as passwords, multi-factor authentication prompts, session tokens, and access rights. If an attacker can take over an account, they can often operate in ways that look legitimate at first, then use that access to steal data, redirect payments, disrupt operations, or set up a future incident.
In this blog, we will walk through five of the most common identity threats facing modern businesses, what they look like in plain English, and the practical steps that reduce risk without making day-to-day work painful.
Phishing and Social Engineering
Phishing remains the most common starting point for identity compromise because it exploits human decision-making. It is not limited to email anymore. Social engineering now shows up in SMS messages, collaboration tools, social media, and phone calls, often impersonating a supplier, a colleague, or a support team. The most convincing attempts do not rely on perfect spelling; they rely on believable context and a sense of urgency.
For most businesses, the real risk is not only that someone enters a password into a fake login page. It is also that an attacker manipulates a business process. A finance user might be pushed into changing bank details for an invoice. An executive might be pressured into approving an unexpected request. A mailbox takeover can then be used to target other people internally using trusted-looking messages.
The strongest defence is a combination of verification habits and sensible controls. Staff should feel confident reporting suspicious messages, and the business should have a simple process for confirming sensitive requests through a second channel, especially where money, payroll, or supplier details are involved. From a technical perspective, tighter sign-in controls and clearer separation of duties help ensure that one mistake does not become a full-scale incident.
Because phishing is so often about collecting reusable credentials, the next risk is what happens when those credentials already exist elsewhere on the internet.
Credential Stuffing and Password Reuse
Credential stuffing sounds complex, but the concept is simple. Attackers take usernames and passwords leaked from one service, then try them on many other services, hoping that people have reused passwords. This is why a breach that happened outside your organisation can still become your problem months or even years later.
For businesses of all sizes, the impact can be surprisingly wide. A compromised email account can be used to reset other passwords, watch conversations quietly, request changes to payment details, or distribute further phishing emails from a trusted address. A compromised SaaS account can expose customer data, internal documents, or operational workflows.
The practical response starts with reducing password reuse and making secure behaviour easier than insecure behaviour. Password managers help teams create and store unique credentials without relying on memory. Strong MFA reduces the value of stolen passwords, although it should be configured well, as we will cover next. Longer term, passkeys and passwordless authentication can materially reduce the risk of credential theft and reuse because there is no password to steal and replay, which is particularly valuable for the accounts that matter most.
Even when you have MFA in place, attackers may not give up; they simply shift their attention to the MFA step itself.
MFA Bypass Techniques
MFA is a strong control, but it is not invulnerable. Attackers have developed reliable ways to get around weaker implementations, particularly when users are overwhelmed by prompts or when one-time codes can be intercepted or tricked out of a user.
One common technique is MFA fatigue, where repeated push prompts are triggered until a user approves one just to stop the disruption. Another is real-time phishing, where an attacker sits between the user and the real login service, capturing the login flow and, in some cases, gaining access after the MFA step has been completed. In other scenarios, the attacker targets the recovery process, such as password resets, SIM swaps, or social engineering aimed at support desks.
For business leaders, the important distinction is the difference between “MFA is turned on” and “MFA is deployed in a resilient way”. Resilient MFA uses policies that challenge higher-risk sign-ins and higher-risk actions. It reduces repeated prompts that train people to click approve, and it adds friction where it matters most, such as administrative access and financial workflows. This is also where passkeys and passwordless authentication become relevant again because they are designed to be more resistant to phishing, and they can improve user experience at the same time.
When an attacker cannot easily steal a password or defeat MFA, they often focus on a different asset: the logged-in session.
Session Hijacking
A session is what keeps you logged in after you authenticate. It is useful because it reduces sign-in friction, but it also creates a target. If an attacker steals a session token from a device, they can sometimes access services as that user without needing to re-enter credentials or pass MFA again.
Session hijacking is often linked to compromised endpoints. Malware, malicious browser extensions, unsafe downloads, and unpatched software can all create opportunities for session theft. This is one reason identity security cannot be separated from device security. If a laptop is compromised, strong authentication is still valuable, but an attacker may attempt to bypass it by taking over active sessions and using existing access.
Reducing this risk involves keeping devices healthy and limiting how far a session can be abused. Patch management, endpoint protection, and sensible browser controls reduce the chance of token theft. In parallel, access policies can require re-authentication for sensitive actions, and incident response processes should include the ability to revoke sessions quickly when suspicious activity is detected.
External attackers are not the only identity risk, though. Sometimes the identity weakness is simply that access has grown without being reviewed.
Insider Misuse
Insider misuse includes deliberate wrongdoing, but in growing businesses it is often accidental or process-driven. Access tends to expand over time, especially when teams are lean and people take on multiple roles. Users gain permissions to help with a project, and those permissions never get removed. Shared accounts appear because they are convenient. Offboarding becomes inconsistent because it is handled informally.
The consequence is that a single compromised account can have far more impact than it should, and internal mistakes become harder to contain. It also makes investigations slower because it is unclear who had access to what, and why.
A practical approach is to make access review part of normal operations, not a once-a-year audit scramble. Privileged access should be limited and monitored, role changes should trigger access changes, and the business should be able to confirm quickly that leavers no longer have access to email, files, and key SaaS services. Clear ownership for identity admin tasks is also important because when “everyone” owns it, no one owns it.
With those five threats in mind, the next question most leaders ask is what support looks like in practice, especially when you want progress without creating a large internal project.
How We Can Help
Identity security improves fastest when it is treated as a practical programme rather than a collection of disconnected controls. Our role is to help you identify where the risk actually sits in your environment, then reduce it in a way that fits your business, your budget, and how your teams work.
On the project side, we can review your current identity setup, assess the accounts and systems that matter most, and create a prioritised plan. That typically includes strengthening sign-in policies, reducing excessive permissions, tightening joiner, mover and leaver processes, and introducing a realistic roadmap for passkeys and passwordless authentication, starting with high-value users and services.
On the managed side, we can help you maintain and improve over time through ongoing monitoring, review of identity alerts and sign-in anomalies, guidance on policy tuning, and support during investigations when something does not look right. That combination means you are not left with a one-off implementation that slowly drifts back into risk.
If you want to understand which of these identity threats is most likely to affect your business and what the most cost-effective next steps look like, we can talk it through with you and map out a plan. Contact us to find out more, and we will tailor the approach to your priorities and your current setup.
