Sound Networks IT Support
Sound Networks IT Services
IT Support
Managed IT Services
Cyber Security
Knowledge Base
About Us

Request Quote

This site uses cookies for functionality and analytics Manage Close

Managing third-party risk

Essential vetting for APIs

Modern business relies on third-party apps for everything from analytics to cloud storage. While convenient, every integration introduces a potential vulnerability. This risk is significant: 35.5% of all recorded breaches in 2024 were linked to third-party vulnerabilities. These risks can be managed. This report outlines the hidden dangers of external API integrations and provides a practical checklist to help you evaluate any external app before connecting it to your system.

Why Third-Party Apps Are Essential

Third-party integrations boost efficiency, streamline operations, and cut costs by allowing businesses to access specialised, pre-built features (e.g., payment gateways, CRMs) rather than building every component from scratch.

Hidden Risks of Integration

Connecting external services introduces a range of security, privacy, and operational exposures:

  • Security Risks: A seemingly benign plug-in may contain malware or be easily compromised, offering a direct gateway for hackers to infiltrate your core systems, steal sensitive data, or cause operational disruption.
  • Privacy and Compliance: Vendors may gain access to sensitive information and use it in unauthorised ways (e.g., sharing, storing data in different regions). A breach can lead to significant legal penalties under UK/EU data protection laws.
  • Operational and Financial: API failures or weak credentials can disrupt crucial workflows, cause service outages, and lead to costly financial losses if systems are exploited.

Pre-Integration Vetting Checklist

Before you connect any external service, a thorough security cheque is mandatory. Use this checklist to vet providers:

Security Credentials & Certs

Does the provider hold recognised credentials (e.g., ISO 27001, SOC 2)? Do they run a bug bounty or vulnerability disclosure programme?

Data Encryption

How is data encrypted (both in transit and at rest)? Ensure strong protocols (TLS 1.3 or higher) are used for data moving across networks.

Authentication & Access

Does the app use modern standards (OAuth2)? Does it strictly adhere to the principle of least privilege? Are tokens short-lived and permissions enforced?

Monitoring & Detection

Does the vendor offer proper logging and alerting? Do they have a clear process for detecting vulnerabilities and responding to threats?

Versioning & Deprecation

Are there clear versioning policies? Is backward compatibility guaranteed, and is there advance notice when features are retired?

Rate Limits & Quotas

Are throttling and request limits supported to prevent abuse or system overload on your infrastructure?

Audit Rights & Contract

Does the contractual agreement allow you the right to audit their security practices and enforce remediation timelines?

Data Location & Jurisdiction

Where is your data stored and processed? Ensure compliance with UK data protection and local regulatory requirements.

Failover & Resilience

What mechanisms are in place for redundancy, failover, and data recovery in case of system failure?

Supply Chain Dependencies

Get a list of the libraries and dependencies the vendor uses (especially open-source) and assess them for known vulnerabilities.

Wrapping up

Third-party vetting must be treated as an ongoing programme, not a one-time task. Continuous monitoring and regular reassessment are essential to ensuring that every tool in your stack works for you, rather than against you, by transforming risk into managed compliance.

MSP
Watch Guard
Datto
Huntress
Dell Technologies
Hyper-V
BitDefender
Microsoft 365
3CX
Veeam
Signable
Cyber Essentials
MSP
Watch Guard
Datto
Huntress
Dell Technologies
Hyper-V
BitDefender
Microsoft 365
3CX
Veeam
Signable
Cyber Essentials
Need Help?