Cloudflare’s 2025 Internet review highlights surge in bot activity, cyber attacks and post-quantum encryption adoption

Cloudflare has released its sixth annual Year in Review, offering a detailed analysis of global Internet trends, traffic patterns and security developments observed during 2025. The report draws on data from Cloudflare’s global network and Cloudflare Radar and points to a year marked by accelerating Internet usage, evolving cyber threats and significant advances in encryption technologies.

According to the findings, global Internet traffic grew by 19% year-on-year in 2025, reflecting the expanding role of digital services in everyday personal and professional activity. At the same time, the report notes an escalation in cyber conflict, with more than 25 record-breaking distributed denial-of-service (DDoS) attacks detected during the year.

One of the most notable security milestones highlighted is the rapid adoption of post-quantum encryption, which now protects 52% of all human Internet traffic. This marks a step towards safeguarding online communications against future cryptographic threats.

Key Internet trends ...