System security & maintenance

Security is part of the system, not something bolted on to it.

Most of what keeps Kodex safe happens while you are using it and you never see it. Twice a month something needs a restart, and this page tells you exactly when, exactly how long, and exactly what is unaffected.

24/7patched continuously
a month
30sworst case
Next windowSeptember 20, 07:00 UTCin 11 days

What happens every day, without you noticing.

These four run continuously. Nothing restarts, nothing pauses, and you are never told because there is nothing to tell.

Application security patches

Shipped the day they are released.

SSL/TLS certificate renewals

Rotated before they can expire.

Firewall and intrusion prevention

Rules updated against live threat feeds.

Package vulnerability fixes

Dependencies patched on disclosure.

What needs a restart, twice a month.

Three things cannot be changed while the system is running. They are the reason the window exists, and the reason it is measured in seconds rather than minutes.

Kernel security patches

Deep system-level protection that cannot be applied while running.

Performance optimisation

System memory refresh and a clean service restart.

Core infrastructure

Updates to the fundamental components everything else sits on.

Your timezoneWhen the window opens
Pacific Time11:00 PMSaturday
Eastern Time2:00 AMSunday
UK Time7:00 AMSunday
Central Europe8:00 AMSunday

What is safe, and what to do if something blinks.

Untouched
  • Your positions and holdings
  • Portfolio values
  • Finished courses, lessons and badges
  • Profile settings
  • Streaks and achievements
  • Your session stays logged in

When the window closes, your session, your data and your progress are exactly where you left them. Nothing is rolled back and nothing needs restoring.

May pause briefly
Trade execution

May not complete.

Retry after about 30 seconds.
Quiz answer

The current answer may not save.

Re-submit once you reconnect.
Daily challenge

The submission may not register.

Submit again when the platform returns.
Dashboard view

A brief connection lost message.

The page reconnects on its own.

The whole year, published in advance.

Every window for 2026 is below. We do not move them without saying so, and we do not add unannounced ones.

January5, 19
February1, 15
March1, 15
April5, 19
May3, 17
June7, 21
July5, 19
August2, 16
September6, 20
October4, 18
November1, 15
December6, 20

ALL TIMES 07:00 UTC // 1ST AND 3RD SUNDAY // TYPICALLY 15 TO 30 SECONDS