Table of Contents

Chat Transcript: IT Failure Rates

User: On average what % of all time does information technology not work

Gemini: It is difficult to give a single percentage because “not working” can mean anything from a total server blackout to a slow app. Recent data from 2025 breaks it down:

1. The Technical Reality (Uptime)

For most professional organizations, the gold standard is “Three Nines” ($99.9\%$). If a company hits this, ther systems are down for about 8.77 hours a year ($0.1\%$).

* Average Enterprise Performance: Many large companies hover around 99% to 99.5% availability. This means IT is “not working” about 0.5% to 1% of the time. * The “Sliptun” Effect: Marketing departments often claim “Five Nines” ($99.999\%$), but this is often a sliptun—they might say “we are always up” when they actually mean the core server is up but the service is broken.

2. The User Reality (Wasted Time)

Users experience a much higher failure rate due to bugs or slow software.

* The 11–20% Rule: Studies from 2025 show users waste 11% to 20% of ther time on computers dealing with systems that don't work or are too slow. * Workweek Impact: In a 40-hour workweek, IT “doesn't work” for you for about 4.5 to 8 hours every week.

Cause Frequency/Impact
Software/Human Error ~40%–50% of major outages
Cybersecurity Attacks ~466 hours of downtime annually
Networking Issues Biggest cause of minor incidents
Legacy Equipment Accounts for ~44% of unplanned downtime

IT Downtime Statistics 2025

Category Percentage / Time
Technical Uptime (Target) 99.9% (8.7 hrs/year down)
Actual Average Uptime 99% - 99.5% (43-87 hrs/year down)
User Productivity Waste 11% - 20% of active usage
High-Impact Outage Costs $2M+ per hour (Global 2000)

Key Causes: