SiteLock Annual Security Report 2025
Attackers stopped making noise. In 2025, they got in quietly, left fewer traces, and stayed—with backdoors found on 7 in 10 infected websites.
The SiteLock Annual Security Report 2025 draws on over 38 billion files analyzed each month across more than 20 million websites to reveal how website compromise became more persistent and what small businesses, web administrators, and hosting providers can do about it.
What is the SiteLock Annual Security Report?
The SiteLock Annual Security Report is a comprehensive cybersecurity analysis that examines the latest website security threats, attack trends and emerging risks based on real-world data from millions of websites.
The 2025 edition tracks a decisive shift — from noisy, nuisance malware to quiet, persistent compromise and turns it into actions you can take now.
The data behind it
Insights from millions of scanned websites deliver deep security intelligence.
- 20M+ websites monitored globally, across every hosting environment
- 38B+ files analyzed every month — files, databases, webpages and vulnerabilities
- 504M threats blocked per month network-wide
- 1.5M infections cleaned every week, automatically
What the 2025 data shows
- Persistence is the norm: backdoors on 70% of infected sites, a 43% jump yoy
- Attack pressure is is climbing: 658 attacks/site/day — up 15% on 2024
- Smaller footprint, more victims: 19% fewer files per infection but 29% more sites infected weekly
- CMS is the entry surface: CMS sites are 30% more likely to be infected than non-CMS sites
- Not a nuisance — a breach: remote code execution found on 1 in 3 infected sites
The 2025 shift: the quiet compromise.
Attackers traded volume for staying power. Infections now leave fewer files behind — 414 per site per week, down from 513 — yet reach far more sites and the objective is no longer defacement. It's a durable foothold that can be resold, reused and returned to.
Who should read this report?
Small business owners | Web admins | Hosting providers | IT & cybersecurity professionals |
protecting the website their revenue and reputation run on | responsible for keeping sites patched, clean and online | ensuring secure website environments for clients | tracking the latest website security threat |
Read the latest report | |||
Why website security matters and how this report helps
Attacks are quieter and more persistent than ever. A single vulnerable plugin can become a backdoor that outlives every cleanup. This report turns real-world telemetry into clear steps you can act on now.
Benchmark your security | Identify emerging threats | Take action & strengthen defenses |
See how your risk compares across CMS platforms, plugins, severity tiers and infection rates | Fileless payloads, AI-accelerated exploitation, backdoor-first attack chains and bot-driven reconnaissance | Break the reinfection cycle with root-cause removal, continuous scanning and pre-execution blocking |
Why trust SiteLock’s security insights?
15+ yrs of security expertise | 20M+ websites monitored | 99.9% malware detection rate |
Trusted by businesses worldwide | Real-time security insight at network scale | Across every major CMS platform |
Our data comes from 38 billion files analyzed every month across more than 20 million real-world websites
— showing you exactly how attackers get in and how they stay.
Get the expert insights you need today.
FAQs
What is the SiteLock annual security report?
It's a data-driven cybersecurity report analyzing emerging website threats, vulnerabilities and security trends. The 2025 edition focuses on the shift to persistent, low-footprint compromise — and what it means for the people who own and host websites.
How does SiteLock collect its data?
SiteLock analyzes more than 20 million websites, scanning over 38 billion files every month — across files, databases, webpages and vulnerabilities — to track and mitigate cyber threats.
What types of threats does the report cover?
The report includes insights on malware, phishing, DDoS attacks, website vulnerabilities, and AI-driven cyber threats.
How can SiteLock help me secure my website?
We offer automated malware removal, real-time threat detection, and security solutions designed for SMBs and hosting providers.
Get started with SiteLock today
SiteLock quickly removes threats, restores functionality, and helps prevent future attacks, all backed by continuous monitoring and support.
