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Financial Services Is Banking on Third-Party Risk It Can’t See

Financial Services Is Banking on Third-Party Risk It Can’t See
The most interconnected financial institutions face the highest third-party breach risk. New research reveals why outsourcing-dependent supply chains create vulnerability.

For Financial services, every payment processor, cloud platform, core banking vendor, and file-transfer tool a bank or fintech relies on is a relationship the institution didn’t build from scratch and can’t fully audit in real time. New research on third-party breaches points to something almost counterintuitive: the least sophisticated organizations don’t get hit hardest; the most interconnected do. Wealthier, highly networked economies with extensive outsourcing and complex supply chains actually face higher third-party breach frequency, precisely because their web of trusted relationships is larger and more exploitable. Financial services is the industry that outsourcing built. That makes it the industry most exposed to this exact pattern.

Third-Party Risk, Fourth-Party Blind Spot

SecurityScorecard’s STRIKE Threat Intelligence Unit analyzed 1,000 breaches across industries and regions for its 2025 Global Third-Party Breach Report and found that 35.5% of 2024 incidents originated through third parties, which is a 6.5 percentage-point increase from the year before. That’s not a marginal drift. It’s a structural shift in where attackers choose to spend their effort, prioritizing third-party access for its scalability. Compromise one vendor, and you don’t get one target; you get every customer that vendor touches.

The report’s recommendations aren’t abstract, either: match risk management to your actual risk profile rather than a generic framework, treat weak vendor security as a direct pathway to fourth-party exposure, demand secure-by-design technology from vendors rather than treating security as optional, and prioritize hardening the specific infrastructure attackers actually go after, such as file transfer software, cloud infrastructure, industry-specific services, and VPNs.

Fintech’s Resilience Gap: Strong Internal Controls, Exposed Vendor Relationships

SecurityScorecard’s sector-specific follow-up, Defending the Financial Supply Chain, analyzed 250 of the world’s top fintech companies and found the pattern isn’t theoretical for this industry; it’s a fact. Third-party attack vectors caused 41.8% of breaches, with fourth-party exposures adding another 11.9%, more than double the global average. Nearly a third of breached companies weren’t hit once; 28.2% had multiple separate incidents, which is a pattern, not bad luck.

And the report is specific about where that risk concentrates: technology products and services accounted for 63.9% of third-party breaches, with file transfer software and cloud platforms as the most frequent points of compromise. In comparison, application security and DNS health were the most common weaknesses, with 46.4% of companies scoring the lowest specifically on application security. This is the “Resilience Gap” in one sentence: a fintech firm can have genuinely strong internal controls and still be exposed, because the weakness isn’t inside the perimeter. It’s in the vendor relationship the perimeter doesn’t cover.

Point-in-Time Compliance Has Already Failed

Here’s the uncomfortable part: almost none of the risks described above would show up in a self-attested vendor questionnaire completed once a year. A vendor can answer every question honestly in January and still have their file-transfer software compromised in June. The firm relying on them won’t find out until the next assessment cycle, or until a breach occurs. That’s the exact gap the EU’s Digital Operational Resilience Act (DORA) was written to close: Pillar 4 requires continuous monitoring, not point-in-time compliance checks, precisely because point-in-time checks have demonstrably stopped working for an industry this interconnected.

It also explains why credential exposure has become such a specific liability for financial services. Shared customer login behaviors and widespread credential leakage give attackers a way to bypass perimeter defenses entirely, no vulnerability required, just a reused password. A vendor questionnaire can’t catch that. Continuous, outside-in monitoring does.

How SecurityScorecard Helps Financial Institutions Build Cyber Resilience, Reduce Vendor Risk, and Achieve Compliance

Financial institutions need a continuous, evidence-based approach to third-party risk, replacing static, self-attested reviews with real-time visibility across the entire vendor ecosystem. SecurityScorecard’s TITAN AI platform unifies threat intelligence and third-party data so security and risk teams can detect, prioritize, and respond to vendor risk in real time. With TITAN AI, you’ll be able to:

  • See Your Entire Vendor Network: TITAN Watch continuously monitors your full supplier base, surfacing unreported vendors, shadow IT, and fourth-party subcontractor links that a periodic review would miss.
  • Automate Vendor Assessments: TITAN Assess uses AI-accelerated workflows to validate vendor documentation and map responses directly to frameworks like DORA, cutting manual assessment work by up to 95%.
  • Detect and Respond to Active Threats: TITAN Secure detects threats across third-party environments in real time and runs rapid triage to determine incident impact across vendors before it spreads.
  • Catch Zero-Days and Leaked Credentials Early: Threat Intelligence identifies confirmed vendor exposure to zero-day vulnerabilities within 48 hours of discovery, and monitors the dark web for leaked credentials tied to your vendors.
  • Quantify Risk in Business Terms: Strategic Risk Quantification translates technical findings into financial-impact metrics your board and regulators can actually act on.
  • Prioritize What Actually Matters: Policy-Driven prioritization applies business context such as data sensitivity and service criticality to technical signals, so your team can prioritize real vendor risks.
  • Share Evidence Without the Back-and-Forth: Trust Center gives you a living, real-time record of your security posture to share securely with regulators and internal stakeholders, cutting down ad hoc audit requests.
  • Scale Without Adding Headcount: MAX Services puts a Vendor Risk Operations Center behind your program for expert-led monitoring and supplier coordination during major incidents.

From vendor onboarding to incident response, financial institutions should align their third-party risk strategy around one principle: continuous visibility beats periodic review, every time. Start with SecurityScorecard!