Relevant to Colombia's payment infra fragility: Bancolombia outage blocks transfers to Nequi/other banks since Feb 22 (IBM machine failed in maintenance).
~70% of national txns (100M+ /6mo, 600K interbank/mo). Daily USD flows: $50M+ A la Mano + Nequi peaks $100M+.
Single-vendor risk in billion-scale retail payments? Details: https://www.bloomberglinea.com/latinoamerica/colombia/caidas...
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