Cybersecurity Tips Every Financial Services Leader Needs

September 29, 2026

Your clients trust you with something deeply personal: their financial lives. Account numbers, tax records, loan details, investment portfolios; the data your firm holds is among the most sensitive that exists. That's exactly why financial services organizations are one of the most targeted industries for cyber attacks.

According to IBM's Cost of a Data Breach Report 2026, the average data breach in financial services costs $6.29 million, well above the global average of $4.99 million. The threat isn't slowing down. Ransomware attacks against financial firms rose 30% year over year in 2025, with early 2026 data showing a further 76% jump in Q1 alone (Black Kite, 2026 Financial Services Cybersecurity Report).

You don't need to be a security expert to make smart decisions about protecting your business. But you do need a clear picture of what you're up against and what steps actually make a difference.

Why Financial Services Firms Are a Prime Target

Cyber criminals follow the money and the data. Financial firms hold both in abundance. Beyond the obvious financial gain, attackers target this sector because:

• High-value data (PII, financial records, account credentials) can be sold, ransomed, or used for fraud

• Legacy systems at many firms create security gaps that are slow to patch

• Third-party vendor relationships (software providers, payment processors, data services) create additional entry points

• Regulatory pressure means a breach carries double damage: the incident cost and the compliance fallout

The Identity Theft Resource Center reported 739 data compromises in financial services in 2025, the highest of any industry for the second consecutive year.

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The Most Common Cyber Threats Facing Financial Firms Right Now

Knowing which cybersecurity threats financial firms face helps you prioritize your defenses. Here are the attacks your firm is most likely to face.

Phishing and Social Engineering

Phishing is when an attacker sends a fraudulent email (or text or call) that looks legitimate and is designed to trick someone into clicking a link, entering credentials, or wiring money.

Financial institutions are the most impersonated sector, targeted in 18.3% of all phishing attacks globally (mid-2025 data). These attacks are getting harder to spot because criminals are now using AI to write convincing, personalized messages at scale.

A typical scenario: an employee receives an email that looks like it's from your firm's payroll system, asking them to verify their login. They click, enter their credentials, and without realizing it, hand an attacker the keys to your network.

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Ransomware

Ransomware is a type of attack where criminals encrypt your files and demand payment to unlock them. In 2025, 64% of financial services organizations were hit by ransomware attacks (Sophos, State of Ransomware in Financial Services 2025). The average recovery cost reached $1.74 million — and the median ransom demand climbed to $3 million, the highest of any industry surveyed.

What makes this especially damaging for financial firms is the combination of operational downtime, regulatory notification requirements, and reputational harm, all hitting at once.

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Business Email Compromise (BEC)

Business Email Compromise happens when an attacker gains access to, or convincingly impersonates, a legitimate business email account to authorize fraudulent wire transfers or payments.

The FBI's Internet Crime Complaint Center (IC3) reports cumulative BEC losses of $55.49 billion globally. In financial services, where wire transfers are routine, a single convincing email to the right employee can result in immediate and often unrecoverable losses.

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Third-Party and Vendor Breaches

This one surprises many business leaders: you can do everything right internally and still suffer a breach through a vendor you rely on.

In August 2025, a breach at Marquis Software Solutions, a technology provider to banks and credit unions, affected more than 74 financial institutions and up to 1.35 million individuals (Black Kite, 2026). A separate report found that 97% of major U.S. banks were impacted by third-party breaches in 2024 and 2025 (Vectra AI).

According to IBM, third-party involvement in breaches doubled to 30% of all incidents in 2026. Vendors you trust are now one of your most significant attack surfaces.

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Practical Cybersecurity Tips for Financial Services Leaders

You don't need to understand firewall configurations to take meaningful action. What you need is the right framework and the right questions to ask. Here's where to start:

TIP 1: Make Multi-Factor Authentication (MFA) Non-Negotiable

Multi-factor authentication means that logging into an account requires more than just a password. Typically, a second step is required, like a code sent to your phone or a fingerprint scan.

This single control stops the majority of credential-based attacks. If a phishing attack steals an employee's password, MFA prevents that password from being useful on its own.

Ensure MFA is enabled on every business application: email, accounting software, banking portals, CRM systems, VPNs, and any remote access tools. It's one of the most cost-effective security measures available.

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TIP 2: Train Your Team Regularly, Not Just Once

Technology can filter a lot of threats, but a trained employee is your best defense against phishing and social engineering. Annual compliance training is a start, but it's not enough.

Short, frequent training sessions (monthly or quarterly) that use realistic examples are far more effective. Simulated phishing tests, where your team receives a fake phishing email to see how they respond, help identify who needs additional coaching without any real risk.

Topics to cover:

• How to spot phishing emails and suspicious links

• What to do (and not do) if they receive a suspicious message

• The firm's process for reporting potential incidents

• Safe handling of client data and confidential information

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TIP 3: Keep Software and Systems Patched and Up to Date

Many cyber attacks exploit known vulnerabilities in outdated software, specifically security flaws that vendors have already released fixes for but organizations haven't yet applied. Black Kite's 2026 report found that 78% of core financial services vendors had patch management failures.

Establish a regular patching schedule for all software, operating systems, and devices. For critical security patches, aim to apply them within 24 to 72 hours of release. This requires coordination with your IT team or managed service provider, but the payoff is significant.

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TIP 4: Manage Third-Party Vendor Risk

With third-party breaches now driving close to a third of all security incidents, vendor management has outgrown its old role as a purely procurement-driven process. It's become a core security priority.

Steps to take:

• Maintain an inventory of all vendors who have access to your data or systems

• Require vendors to provide evidence of their security practices (SOC 2 reports, security questionnaires, or third-party assessments)

• Include cybersecurity requirements and breach notification obligations in vendor contracts

• Review vendor security posture at least annually, and whenever major changes occur

You can't control what happens inside your vendor's environment, but you can set standards, ask the right questions, and build contractual accountability.

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Tip 5: Have an Incident Response Plan Before You Need One

An incident response plan is a documented process for what your team does if a cyber attack occurs. Who is notified first? Who makes the call to shut down systems? What are your regulatory reporting obligations and deadlines? Who handles client communications?

Without a plan, these decisions get made under pressure and often incorrectly. With a plan, your team moves faster and with more confidence, which directly reduces the damage and cost of an incident.

At a minimum, your plan should cover:

• Detection and initial containment steps

• Internal escalation and external notification (legal counsel, regulators, clients)

• Recovery priorities, specifically which systems need to come back online first

• Post-incident review to prevent recurrence

Review and test your plan at least once a year. A plan that's never been practiced is rarely useful when it counts.

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TIP 6: Encrypt Sensitive Data Everywhere

Encryption converts data into unreadable code that can only be accessed with the correct key. For financial services firms, encrypting client data means that even if attackers steal it, they can't use it without the decryption key.

Encryption should apply to:

• Data stored on servers, workstations, and laptops

• Data transmitted over the internet (via HTTPS and secure email protocols)

• Backup and archive files

• Portable devices such as USB drives and mobile phones used for work

This is a technical piece of financial data security that your IT team or MSP can configure, but it's still worth asking directly: "Is all client and financial data encrypted, both at rest and in transit?"

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TIP 7: Align with Regulatory Requirements

Financial services companies operate under a dense web of compliance requirements, including GLBA, PCI-DSS, SOC requirements, state-level regulations like NYDFS, and for firms operating in the EU, DORA. Many of these frameworks require specific security controls.

The good news is that compliance and security are largely aligned. Meeting regulatory requirements moves you toward better security at the same time. The risk of ignoring this is significant. In fiscal year 2025, the SEC obtained $17.9 billion in financial remedies, including $7.2 billion in civil penalties (SEC Press Release 2026-34). And the clocks are short: financial firms face breach-notification deadlines as tight as 72 hours depending on their regulators. Your incident response plan should spell out which apply to you before an incident, not after.

Work with your legal, compliance, and IT teams to map your current controls against applicable frameworks and address gaps proactively.

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TIP 8: Limit Access on a Need-to-Know Basis

Not every employee needs access to every system or every piece of client data. The principle of least privilege means giving users access only to what they need to do their job and nothing more.

This limits the damage if an employee's account is compromised. If an attacker gains access through a junior team member's credentials, least privilege ensures they can't immediately reach your most sensitive systems.

Conduct periodic access reviews to remove permissions for employees who have changed roles or left the firm, and enforce strong access controls on administrative accounts.

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TIP 9: Secure Remote and Hybrid Work Environments

Remote and hybrid work has become standard, but it expands the attack surface significantly. Employees working from home networks and personal devices introduce security risks for financial firms that don't exist inside a controlled office environment.

Practical steps:

• Require VPN use when accessing company systems remotely

• Enforce device management policies (MDM) for any device used for work

• Prohibit use of personal, unmanaged devices to access sensitive client data

• Ensure home Wi-Fi security guidelines are communicated clearly to all staff

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TIP 10: Back Up Your Data and Test Those Backups

Ransomware works by locking you out of your data. Organizations with clean, tested backups have a meaningful option that others don't: restore from backup instead of paying a ransom.

Follow the 3-2-1 backup rule:

• 3 copies of your data

• 2 different storage media types

• 1 copy stored offsite (or in an isolated cloud environment)

Critically, test your backups regularly. A backup that hasn't been tested is a backup you don't actually know works. Run periodic restore tests to confirm your recovery process is functional before you ever need it in a crisis.

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The Cost of Inaction

Some leaders view cybersecurity as a cost center, an expense with uncertain returns. That framing tends to change quickly after an incident.

A $6.29 million average breach cost doesn't account for the time your team spends on recovery, the reputational damage with clients, the regulatory investigation that follows, or the business you lose as a result. For many financial firms, especially smaller and mid-sized organizations, a major breach is existential.

Effective cybersecurity doesn't require perfection. It requires consistent application of proven controls, a prepared team, and a partner who understands both the threat landscape and your business obligations.

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Where to Start

If you're not sure where your firm currently stands, a cybersecurity risk assessment is the most practical first step. It gives you a clear view of your current posture, what's working, where the gaps are, and what to address first.

One Step Secure IT works with financial services organizations to build security programs that are practical, compliant, and scaled to the size and complexity of your business. Reach out to schedule a conversation. No pressure, no jargon, just a straightforward look at where you stand and what you can do about it.

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