Distributed Denial of Services (DDoS) attacks can take any website offline. Even Google and GitHub, with their immense resources, struggle to stay online during a large attack. Even worse, anyone with a few dollars can launch one. If you host websites, you and your users could be hit with a denial of service attack big enough to take sites down for hours or even days. However, the worst effects of DDoS attacks can be avoided …
* The `readUvarint` function would run infinitely given specific input. The function is now terminating if more than 10 bytes of input have been read. Fixes [issue #35](https://github.com/ulikunitz/xz/issues/35) (CVE-2020-16845). * Supports the check-ID None and fixes “Checksum None is invalid” [issue #27](https://github.com/ulikunitz/xz/issues/27).
* The `readUvarint` function would run infinitely given specific input. The function is now terminating if more than 10 bytes of input have been read. Fixes [issue #35](https://github.com/ulikunitz/xz/issues/35) (CVE-2020-16845).
The Netcraft Browser Extension now
offers credential leak detection for extra protection against
shopping site skimmers.
With brick-and-mortar shops around the world closed due to COVID-19, consumers turned to online businesses to fulfil their shopping needs. According to Adobe’s Digital Economy Index report, US online spending in June was $73 billion, up 76% from $42 billion last year. Even with restrictions lifted, research commissioned by Visa suggests that 74% of Britons who shopped online more often during the lockdown will continue to do so.
Now more than ever it is important to protect against JavaScript skimmers. These are snippets of malicious code which criminals upload to compromised shops. Unbeknownst to the store owner or the user, they transmit entered card details directly to the criminal. Unlike scams such as phishing, which can often be avoided by a vigilant internet user, skimmers are invisible to the human eye without a tool such as the Netcraft Extension to expose them.
Netcraft currently blocks over 6,000 shopping sites which contain skimmers, and even large companies such as British Airways, Ticketmaster and Puma have fallen prey to these attacks in the past.
The Netcraft Extension identifying and blocking a skimmer on an online shop
When you visit a shopping site, the Netcraft extension will
evaluate all requests made by the web page. If a request is found to
be sending credentials to a different domain, the extension
will block the request to prevent your data from being stolen. A block
screen will notify you about the request and provide
information about the malicious behaviour that was detected. Only
card number leaks are currently blocked, but other types of
credentials may be enabled in future updates.
For example, if you check out using your credit card on
exampleshoppingsite.com but your card details are sent to
examplebadsite.com, the extension will block the request. This
checking is done locally and securely in your browser – no sensitive
information is sent to Netcraft.
The extension will also block pages which make requests to
malicious domains that are part of JavaScript attacks.
