Endpoint Detection: Strengthening the First Line of Defense in Modern Banking

Most modern banking attacks no longer begin at the network perimeter. They begin on endpoints like employee devices, where remote access, cloud applications and day-to-day business activity create more opportunities for attackers to gain a foothold.

More than half of financial institutions experienced a cyberattack in the past year, underscoring how frequently these devices are now targeted. Effective endpoint detection gives financial institutions the visibility needed to identify suspicious activity on employee devices before threats spread across the organization.

Why Endpoints Have Become the Primary Attack Surface

Every remote login, cloud application session, downloaded attachment and employee device creates another opportunity for attackers to gain access. Because so much business activity flows through these devices, they’ve become one of the most frequent and easiest ways for cyber threats to gain access.

Attackers increasingly exploit trusted workflows like email access, remote logins, and cloud sessions, rather than attempting to bypass hardened perimeter controls. Phishing emails, stolen credentials, and social engineering tactics are designed to blend into normal workflows. After compromising a single endpoint, attackers can quickly access internal systems and expose sensitive data. This often occurs before traditional controls detect anything wrong.

Many traditional security tools were designed to identify known threats, not suspicious behavior occurring across thousands of user interactions and devices. That gap often delays detection until attackers have already moved deeper into the environment.

Why Legacy Security Falls Short

Traditional perimeter security was built for a very different operating environment. However, the environment has changed. Today’s environments include remote access, cloud platforms, third-party integrations and employees connecting from virtually anywhere. At the same time, the way organizations operate has shifted, with more cloud usage, remote work, and connected systems making the traditional perimeter far less effective.

Many legacy tools still rely heavily on known threat signatures, while modern attacks frequently involve legitimate credentials, trusted applications and behavior that initially appears normal. They constantly change, making them harder to detect. AI-assisted phishing and automated attack tooling are also accelerating how quickly attackers can identify and exploit weaknesses.

As a result, endpoints have become one of the most difficult areas to monitor consistently. A single compromised device can provide attackers with access to internal systems, user accounts and sensitive operational data.

Financial institutions need security operations capable of detecting and responding to suspicious activity before attackers can move laterally.

From Reactive Security to Proactive Defense

As institutions recognize the need to shift from reacting to threats to stopping them earlier in the process, endpoint detection and response (EDR) plays an important role. Rather than relying solely on known threat signatures, EDR platforms continuously monitor device activity for indicators such as privilege escalation, unusual access patterns and suspicious process behavior.

Identifying threats is only part of the challenge. Many institutions see more alerts than internal teams can realistically manage. Without consistent monitoring and clear response processes, important signals can be missed or delayed. This, in turn, gives attackers valuable time to move further into the environment.

Examiners increasingly expect institutions to demonstrate not only that threats are detected, but that response activity is timely, documented and repeatable. Endpoint visibility has become a core operational requirement for both incident response and examiner readiness.

To meet these rising demands, institutions must go beyond detection and begin building a more modern, proactive approach to endpoint security.

Building a Modern Endpoint Security Strategy

The challenge is no longer simply identifying threats. It’s responding fast enough when suspicious activity appears. As attack timelines shrink, institutions need security operations that can quickly investigate alerts, isolate compromised devices and contain threats before they spread.

But as defenses evolve, so do attackers. They are becoming more sophisticated, using automation and AI to scale their efforts, creating a widening gap between how quickly attacks occur and how quickly institutions can detect and respond.

Closing that gap requires operational discipline around endpoint security as much as technology.

To get started, institutions should focus on a few key priorities:

• Gain full endpoint visibility
  Ensure you have a clear, centralized view of all devices across your environment on-premise and remote. After all, you can’t protect what you can’t see.
• Maintain a reliable patching program
  Unpatched systems can quickly become easy entry points for attackers. A consistent, timely patching program helps close vulnerabilities before they’re exploited.
• Adopt behavior-based detection
  Move beyond signature-based tools and implement solutions that identify suspicious activity based on behavior, not just known threats.
• Enable real-time response capabilities
  Contain threats quickly by isolating compromised devices, stopping malicious processes, and limiting lateral movement before damage spreads.
• Establish continuous monitoring
  Threats don’t operate on a schedule, so 24/7 monitoring ensures alerts are investigated and addressed without delay.
• Use phishing-resistant MFA for all users
  Phishing-resistant MFA helps prevent stolen credentials from becoming an open door to your systems. Enforcing it across all users significantly reduces the risk of unauthorized access.

Institutions are increasingly combining EDR technology with managed monitoring and response services to reduce investigation delays and improve coverage. By pairing the right tools with defined workflows and dedicated oversight, institutions can strengthen their defenses without overextending internal teams.

Closing the Endpoint Response Gap

For many financial institutions, the challenge is no longer acquiring security tools. It’s sustaining the operational workload that comes with them. Alerts need to be reviewed, activity needs to be investigated and decisions need to be made quickly. Without dedicated resources, it’s easy for things to get delayed or overlooked.

CSI helps fill that gap by handling the day-to-day work that comes with endpoint detection, including:

• Monitoring endpoint activity 24/7
• Reviewing and prioritizing alerts as they come in
• Investigating suspicious behavior and identifying what actually needs attention
• Supporting response actions, such as isolating devices or stopping malicious activity

We also help institutions stay organized and prepared from a compliance standpoint by:

• Maintaining records of alerts, investigations and response actions
• Providing reporting aligned to examiner expectations
• Supporting continuous monitoring and documented control requirements

This allows internal teams to stay focused on broader priorities, while still knowing endpoint activity is being actively monitored and managed. It turns endpoint security from something reactive into something that’s consistently handled and accounted for.

Reinforce Your Front Line of Defense

Endpoint detection isn’t just another layer of security, it’s where most attacks begin. Institutions that can detect and respond quicker are far better positioned to stop threats before they spread.

By identifying suspicious activity early and acting quickly, they can contain threats before they disrupt operations, expose sensitive data or impact account holders.

Want to learn more about strengthening your endpoint security strategy? Watch our on-demand webinar, for a deeper look at the evolving cybersecurity risks facing financial institutions today.

Watch on-demand webinar

Sean Martin, Director of Product Strategy for Managed Services

Sean Martin has worked to establish cybersecurity programs for financial institutions for over 15 years. Previously, Sean has served as Network and Security Operations Manager, Product Manager, and various engineering roles since 2001. In his role, Sean identifies and implements solutions designed to maximize security and profitability for financial institutions. Sean speaks regularly on a variety of financial technology issues, ranging from managed services to IT security best practices.