Please Do Not Throw Sausage Pizza Away” isn’t just a networking memory trick

“Please Do Not Throw Sausage Pizza Away” isn’t just a networking memory trick —

it’s a full cybersecurity roadmap. Every attack, every defense, and every vulnerability ties back to one or more OSI layers.

Here’s how it applies:

🍕 Physical (P) – “Please”

This is where real-world security meets the network.

Server room access control Camera systems Port security Tamper-proofing switches, APs, firewalls A cyberattack doesn’t need code if someone can walk in and unplug a cable.

🍕 Data Link (D) – “Do”

Layer 2 is a goldmine for attackers.

MAC spoofing VLAN hopping STP manipulation ARP poisoning Security here = proper segmentation, 802.1X, port security, and locking down trunk/access ports.

🍕 Network (N) – “Not”

This is where the attacker moves around.

Routing attacks IP spoofing Improper subnetting Zero segmentation (flat networks = ransomware paradise) Security here = ACLs, microsegmentation, proper routing isolation.

🍕 Transport (T) – “Throw”

Every firewall, every port, every protocol lives here.

Blocking dangerous ports Hardening TCP/UDP services IDS/IPS on malicious traffic patterns Preventing DoS/DDoS This is where you stop most external attacks dead in their tracks.

🍕 Session (S) – “Sausage”

Attackers love hijacking sessions.

Token/session hijacking Weak session management VPN session takeover Security here = strong authentication, MFA, session timeouts, rekeying.

🍕 Presentation (P) – “Pizza”

This is all about data protection.

Encryption (TLS/SSL) Certificate management Secure data formatting If Presentation is weak, attackers intercept and read everything.

🍕 Application (A) – “Away”

The front door for attackers.

Web app vulnerabilities Phishing Malware API abuse Misconfigured services (DNS, DHCP, RDP, SMB) This is where you apply secure coding, patching, MFA, EDR, and monitoring.

Why This Matters in Cybersecurity

When you know the OSI layers, you know exactly where an attack happens and how to defend it.

It takes a silly sentence —

“Please Do Not Throw Sausage Pizza Away” —

and turns it into a map of how attackers think.

Every cybersecurity strategy, from firewalls to zero trust, sits on top of these layers.