Covid-19 vaccines, vaccine passports and faked negative test papers are being sold on the darknet.
Prices range from $ 500 (£ 360) to $ 750 for doses of AstraZeneca, Sputnik, Sinopharm, or Johnson & Johnson shots.
Fake vaccination certificates are also sold by anonymous dealers for as little as $ 150.
Researchers say they saw a “spike” in advertising on the vaccine-related dark web.
The darknet, also known as the dark web, is a portion of the internet that is only accessible through specific browser tools.
Researchers at cybersecurity company Check Point have been tracking hacker forums and other marketplaces since January, when vaccine ads first surfaced.
They say the number of ads they viewed has tripled to over 1,200.
Vaccine sellers appear to be from the US, UK, Spain, Germany, France and Russia.
“We do negative tests for Covid-19 darknet”
Another announcement on the hacker forum offers fake negative tests and reads: “We do negative tests for Covid for travelers abroad, for job search, etc. Buy two negative tests and get the third one for free!”
Check Point researchers have found that many merchants are offering fake documents, including allegedly from the UK, with a $ 150 vaccination card using the hard-to-trace Bitcoin cryptocurrency as a payment method.