It's time to upgrade the Public Key Infrastructure (PKI): Better Efficiency and Provable Security Presentation for the CySeP summer school (June'26).
Lectures for the Applied Introduction to Cybersecurity and Cryptography textbook.
MoSS, the Modular Security Specifications framework: Presentation (Crypto'21)
Internet Security Lectures (in the process of being updated for class of Fall'24)
Internet inter-domain routing (BGP) security. This is a long presentation (180 slides) introducing inter-domain routing (BGP), its security concerns, different misrouting attacks and defenses (RPKI, ASPA, BGPsec, ...), as well as IP spoofing and defenses it (uRPF and other Source Address Validation (SAV) techniques, including the BAR-SAV draft). Or, see the shorter version (99 slides), presented in CySeP'26.
Web security attacks and defenses. Quite a lot yet only the tip of the iceberg! [updated 10/8/25]
DNS security attacks (mostly poisoning) and defenses (incl. DNSSEC). [updated Aug 17, 2025]
Firewalls - and a bit on IDS/IPS and Honeypots (aka, basic tools) [updated 10/24]
TCP/IP security (and few quick words QUIC too). Incl. fragmentation attacks (also applied to DNS), spoofing/SAV (incl. uRPF), TCP injections and more.
Denial of Service attacks and defenses. Quite comprehensive, I think; but it's such wide and dynamic area...
LAN security . A rather short presentation; mainly ARP and other LAN-poisoning attacks.