Based in France
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Maciej Korczynski is an associate professor at Grenoble Alpes University in France. His main research interests include Internet-wide passive and active security measurements, incident data analysis, vulnerability noti cations, the economics of cybersecurity, and security of Internet protocols, in particular DNS.
Website: https://mkorczynski.com
Despite being a known vulnerability for at least 25 years, source IP address spoofing remains a popular attack method for redirection, amplification and anonymity. Preventing these attacks requires that operators implement Source Address Validation (SAV) to ensure their networks filter packets with…
In November 2021, Internet users from Mexico lost access to whatsapp.net and facebook.com. By the time the event was reported, the underlying problem had already gone unnoticed for quite some time. Here, we present key takeaways from our analysis of the event - carried out with RIPE Atlas - and we …
Source Address Validation (SAV) is the best current practice (BCP 38/RFC 2827) aimed at filtering packets based on source IP addresses at the network edge. In this article, we show how to identify networks that do not deploy SAV for incoming traffic.
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