Light

Episode #949 Quiz

Ethernet Turned 50
Date: 2023-11-21 | Length: 2 hrs | Episode page at twit.tv

About this episode

Signal’s nonprofit, no-telemetry architecture keeps data minimal but drives high costs: roughly $50 million yearly, including about $6 million for SMS/voice registration anti-spam verification and global infrastructure serving 100,000 requests per second. ALPHV escalated extortion by filing an SEC complaint, while ETSI opened long-secret TETRA encryption for scrutiny and mitigation.

Your name and email are stored only in your browser local storage for convenience. They are not retained server-side.

NameEmail

Question 1: According to the episode, what was the estimated annual cost of Signal's registration-code verification activity?

Question 1

According to the episode, what was the estimated annual cost of Signal's registration-code verification activity?

About $6 million per year About $12 million per year About $2 million per year About $50 million per year

Question 2: What specific escalation did the ALPHV/BlackCat group claim to have made in its extortion attempt against MeridianLink?

Question 2

What specific escalation did the ALPHV/BlackCat group claim to have made in its extortion attempt against MeridianLink?

They claimed to have encrypted MeridianLink's backups They claimed to have sold the data to a competing lender They claimed to have filed an SEC complaint over the breach They claimed to have contacted all affected consumers directly

Question 3: When Apple brings RCS to iPhone messaging, what did the episode say it will replace?

Question 3

When Apple brings RCS to iPhone messaging, what did the episode say it will replace?

FaceTime as the default transport for texts Email as the cross-platform fallback layer SMS and MMS as the fallback layer iMessage as the primary in-system channel

Question 4: What was the practical workaround Steve recommended for measuring USB drive write speed with SpinRite 6.1?

Question 4

What was the practical workaround Steve recommended for measuring USB drive write speed with SpinRite 6.1?

Benchmark only the middle of the drive to avoid wear leveling Compare Level 1 and Level 3 timings on the same sector range Use ValiDrive's min/max statistics on tiny alternating transfers Use ReadSpeed on the drive and subtract the cache effect

Question 5: According to the episode, what did Ethernet's original design specifically need to support?

Question 5

According to the episode, what did Ethernet's original design specifically need to support?

Mobile phones roaming between outdoor base stations A laser printer and hundreds of computers in one building Encrypted voice traffic for police and emergency radios Long-distance inter-building links over leased lines

Cancel

My Data//Security & Privacy//Clear Local Data

© 2026 Ken ArmstrongSecurity Now™ is a trademark of TWiT LLC. All trademarks and copyrights of the Security Now podcast are respected and reserved to their respective holders.
This is a hobby project made with love and admiration for what Steve Gibson and Leo Laporte have built over 20 years.