JS-SNIFFERS

Feb. 21, 2020

According to a recent report by a Singapore-based cybersecurity company, around 98% of sensitive credit card details, that have been put up for sale on the dark net, are those of Indian customers. JavaScript sniffers could have been used to amass the bank card data.

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JavaScript or JS-Sniffers are programmes used for stealing credit and debit card information from e-commerce websites. These are among the latest concerns when it comes to cybersecurity and theft of sensitive card details.
JS sniffers are a growing concern because they're so difficult to detect and, even if the code is removed, the attackers can return.
Most JS sniffer tools work in much the same way as a credit card skimmer. But instead of physically attaching a device to an ATM, a JS sniffer uses a few lines of code injected onto an e-commerce site to skim data that consumers use to buy goods.

Source : The Hindu