Malicious hackers are producing easy to use tools that automate attacks to cash in on a boom in hi-tech crime.
On sale, say security experts, are everything from individual viruses to comprehensive kits that let budding cyber thieves craft their own attacks.
The top hacking tools are being offered for prices ranging up to £500.
Some of the most expensive tools are sold with 12 months of technical support that ensures they stay armed with the latest vulnerabilities.
"They are starting to pop up left and right," said Tim Eades from security company Sana, of the sites offering downloadable hacking tools. "It's the classic verticalisation of a market as it starts to mature."
Malicious hackers had evolved over the last few years, he said, and were now selling the tools they used to use to the growing numbers of fledgling cyber thieves.