IIBF Certified Information System Banker case studies
IIBF Certified Information System Banker · Put your knowledge to work in context.
The Certified Information System Banker (CISB) is an IIBF certification examination aimed at banking and BFSI professionals who need to work confidently at the intersection of banking operations and information technology. It suits officers in IT, operations, audit, compliance, risk and digital channels, as well as branch and middle-management staff who own or supervise technology-driven processes. The IIBF Certified Information System Banker case studies are 5 cases and about 4,033 words.
1The End-of-Day Batch That Will Not Fit
Vantage Commercial Bank (3.4 million deposit accounts, 1,100 branches) runs its core banking platform in a vendor-hosted data centre. The end-of-day batch was designed for a 3 hour 30 minute window; over eight months it has stretched to 6 hours 50 minutes.
824 words, about 4 min2Ransomware on the Teller Subnet
At 02:40 the SOC at Meridian Bank (1,900 endpoints, 3 data centres) receives an EDR alert for credential dumping on a teller subnet. By 05:00 analysts confirm: a domain administrator account was used to log into 11 servers; 14 domain-admin accounts exist, 5 without MFA, and the backup service account has domain-admin rights with a 12-character password unchanged for four years.
812 words, about 4 min3Rating the Change-Management Finding
In its FY review of change management, internal audit at Citadel Bank sampled 120 of 2,140 changes. Findings: 412 changes were classified 'emergency'; 96 of these touched core banking; 38 had no UAT evidence; 21 were approved by the developer who wrote them; 7 were applied directly in production by the managed-service provider's offshore team using two shared IDs; 60% had no post-implementation review.
767 words, about 4 min4Certifying DR When the Drill Failed
Sunrise Bank's retail payment switch processes 8,000 transactions a minute at peak and routes IMPS, NEFT and UPI. Its primary data centre is in Mumbai; the DR site is in Hyderabad, 600 km away.
843 words, about 4 min5The Limit-Increase Feature and the Fraud Spike
PayNow Wallet, a bank-backed wallet with 4.2 million registered users and 1.1 million monthly actives, has seen a fraud spike: ₹38 lakh lost in 11 days across 210 accounts. The pattern is SIM swap followed by OTP interception, with funds moved to mule accounts opened 3 to 10 days earlier.
787 words, about 4 min