"Most companies in 2025 rely on a whole range of software-as-a-service (SaaS) applications to run their operations. However, the security of these applications depends on small pieces of data called tokens. Tokens, like OAuth access tokens, API keys, and session tokens, work like keys to these applications. If a cybercriminal gets hold of one, they can access relevant systems without much trouble."
"Recent security breaches have shown that just one stolen token can bypass multi-factor authentication (MFA) and other security measures. Instead of exploiting vulnerabilities directly, attackers are leveraging token theft. It's a security concern that ties into the broader issue of SaaS sprawl and the difficulty of monitoring countless third-party integrations. Recent Breaches Involving Token Theft A lot of real-world events show us how stolen tokens can cause security breaches in SaaS environments:"
Most companies in 2025 rely on a range of SaaS applications to run operations. The security of those applications depends on small pieces of data called tokens, including OAuth access tokens, API keys, and session tokens. Stolen tokens act as keys that allow attackers to access systems and bypass protections such as multi-factor authentication. Several breaches illustrate the risk: Slack employee tokens exposed private repositories, malware stole CircleCI session tokens enabling secret exfiltration, and an unrotated Cloudflare API token permitted Atlassian compromise. Token theft is amplified by SaaS sprawl and numerous third-party integrations, creating monitoring and rotation challenges. Strong token hygiene, rotation, least privilege, and inventory controls reduce exposure.
Read at The Hacker News
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