Your KCB app PIN is weaker than you think, but a fix is coming
KCB has acknowledged that its mobile banking app currently authenticates users using only the last four digits of a six-digit PIN. The bank says full six-digit PIN support will arrive in a future update...
✨ Key Highlights
A discovery by a KCB customer revealed that the bank's mobile app appears to only authenticate the last four digits of a six-digit PIN, a revelation confirmed by KCB and slated for a future update.
- The KCB app allows users to set six-digit PINs but allegedly only verifies the final four digits for login.
- Key organizations involved: KCB and a concerned customer who shared the finding on X.
- KCB stated this is a limitation of the current PIN entry interface that will be resolved in a future app update, though no timeline was provided.
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Part of the Day's Coverage
Your KCB App PIN Is Weaker Than You Think, but a Fix Is Coming - July 2026
A discovery by a KCB customer revealed that the bank's mobile app appears to only authenticate the last four digits of a six-digit PIN, a revelation confirmed by KCB and slated for a future update. The High Court at Machakos has ordered Safaricom and Diamond Trust Bank to jointly pay KES 4.4 million to a customer whose funds were stolen following a fraudulent SIM swap. The court ruled that entering a correct PIN is not a defence against SIM swap fraud. Safaricom has quietly launched Akiba Bundles, a new product that integrates data purchases with automatic savings deposits into customers' ZiiDi accounts.
