Person
Gareth Heyes
- First Reported
- Aug 8, 2026
- Latest Reported
- Aug 18, 2026
Reported Context (2)
- PortSwigger web security researcher who discusses his research into CSS-based attacks, including data exfiltration from webmail and password theft, and recommends defensive measures for HTML email. How CSS Can Enable Attacks Through HTML Email
- PortSwigger researcher who presented the email CSS attack research and demonstrated the reported proof-of-concept chains. Email CSS Attacks Can Escape Webmail Boundaries to Steal Credentials and Tokens
People (1)
MITRE ATT&CK (1)
Vendors (3)
Products (11)
Note: Related entities, including threat actors, malware, CVEs, MITRE ATT&CK techniques, vendors, products, tools, countries, and industries, are shown when they appear in the same reporting. Their presence does not necessarily mean they were targeted, compromised, vulnerable, responsible for the activity, or directly involved in the incident.