Skip to content

Which companies just had a verified incident, who lends to them and who owns them. Every claim carries its evidence level and its source. How we decide what is confirmed

Global Financial Service Disruptions

SPEI (Banco de Mexico) and participating banks

payment network · MX · Latin America · Banco de Mexico (operator of SPEI)

Technical failureStatus: resolvedTier 1Severity 4 of 5Evidence confidence: mediumAnalyst-verified

On Saturday 17 Oct 2026 SPEI interbank transfers in Mexico were delayed or failed across at least nine banks and fintechs, with reports intensifying from 16:00 local and easing after 18:00. Banks blamed SPEI maintenance; Bitso logged Banxico-side delays in transfer confirmations from 18:49Z and disabled MXN withdrawals until 00:29Z on 18 Oct.

Original: indisponibilidad temporal del servicio SPEI y no afecta la seguridad de los fondos (Banamex on X)

First disruption
Oct 17 18:49 UTC
First public signal
Oct 17 18:49 UTC (Bitso status page: some MXN withdrawals delayed; later update says Banxico investigating delayed SPEI transfer confirmations)
Acknowledged
Oct 17
Restored
Oct 18 00:29 UTC
Duration
5.7 hours
DFX first recorded
Nov 5 14:58 UTC

What was restricted

transfers outtransfers ininstant paymentswithdrawalsScope: sector wide

Interbank transfers delayed or failing across at least nine institutions on a Saturday; transfers sent in the morning not received by evening; Bitso disabled MXN withdrawals 22:04Z to 00:29Z.

Cause, kept in separate layers

What the institution said
Banks (Banamex, Santander, BBVA) cited 'maintenance' and 'indisponibilidad temporal del servicio SPEI'; Banco de Mexico, as reported by Clic Noticias, described a temporary intermittency from emergency maintenance to its infrastructure. No advance notice of this maintenance found.
DFX classification
Technical failure (cyber: unconfirmed)
Analytical hypothesis (not established)
Unplanned fault in SPEI confirmation processing at the central infrastructure, relabelled as emergency maintenance. Hypothesis only.
Wording used
indisponibilidad temporal del servicio SPEI, no afecta la seguridad de los fondos, mantenimiento de emergencia (as paraphrased), funds are safe
Conflicting reports
Milenio dates the event 17 Oct but cites a Banamex tweet dated 18 Oct (likely UTC display). Clic Noticias published 29 Oct describes 'the weekend'; it is assumed to refer to this event, not a second weekend outage. Start time differs: Bitso 18:49Z (12:49 local) vs Milenio reports intensifying from 16:00 local. Duration computed from Bitso timestamps only.

Dependencies

A dependency is a documented relationship. It is not evidence that the provider was compromised.

  • Provider: Banco de Mexico SPEI (interbank instant payment system), verified
  • Downstream: Bitso: MXN SPEI withdrawals delayed then disabled 22:04Z, re-enabled 00:29Z 18 Oct (documented)
  • Downstream: Banamex: app, ATMs and transfers reported unavailable; bank told customers not to repeat transactions (documented)

Evidence