Financial Services Under Siege: 42 Million Cyberattack Attempts Documented

• •Financial services face over 42 million cyberattack attempts in H1 2026.
• •Attacks are more sophisticated, leveraging AI for speed and stealth.
• •Legacy infrastructure vulnerabilities are a significant risk factor.

SonicWall's 2026 Financial Services Protect Brief reveals that financial services organizations are facing an unprecedented level of cyberattacks, with 42 million attempts against legacy infrastructure in the first half of 2026. This sector experiences more attacks per device than any other industry, more than double the cross-sector average. The attacks are characterized by increased sophistication, aided by AI, and a targeted approach focusing on high-value data. Financial institutions are particularly vulnerable due to reliance on outdated infrastructure and stringent regulatory environments. SonicWall emphasizes that while the methods of attack remain largely unchanged, the deliberate targeting of financial services reflects the high stakes involved. The report highlights the need for improved cybersecurity measures, including the adoption of Zero Trust Network Access to mitigate risks associated with legacy systems. SonicWall's findings are based on data from over one million security sensors globally.