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[OR] [ESB] [E3] [CBS] [1] [ITo] Establish Impact Tolerances

Written by Moh Heng Goh | May 25, 2026 7:51:12 AM

CBS-1 Deposit and Account Services

Impact tolerance defines the maximum level of disruption that Equicom Savings Bank is willing to accept before harm to customers, the bank, or the financial system becomes intolerable.

For CBS-1 Deposit and Account Services, tolerances should cover service downtime, data loss, customer impact, regulatory impact, and the bank’s ability to continue critical deposit functions during severe but plausible disruptions.

BSP Circular No. 1203 requires BSP-supervised financial institutions to identify critical operations, set tolerances for disruption, map interconnections and interdependencies, and test tolerances against severe but plausible scenarios.

The BSP also expects tolerances to include at least a time-based metric and, where appropriate, other measures such as the number of customers affected or transaction value impacted.

Impact tolerance should not be confused with RTO; impact tolerance focuses on the maximum acceptable harm or disruption to the business service, while RTO is a recovery target used by technology and BCM teams.

Table P4: Establish Impact Tolerance for CBS-1

Sub-CBS Code

Sub-CBS

Maximum Tolerable Downtime (MTD)

Maximum Tolerable Data Loss (MTDL)

Customer Impact

Regulatory Impact

Impact Type

Current Resilience Status

Action Required

1.1

Customer Onboarding and Account Application

1 business day

4 hours

New customers unable to open accounts; onboarding backlog

Moderate if prolonged onboarding delays affect fair customer treatment

Customer, Operational, Reputational

Partially resilient through branch-based processing

Enable alternative onboarding workflow and manual intake controls

1.2

Customer Identification and Verification (KYC/CDD)

4 hours

Near-zero for completed KYC records

Account opening delayed; higher friction for customers

High due to AML/CFT and customer due diligence obligations

Regulatory, Financial Crime, Compliance

High dependency on KYC and screening systems

Strengthen backup screening, escalation, and manual compliance review

1.3

Account Approval and Opening

4 hours

1 hour

Approved customers cannot receive account numbers or begin banking

Moderate to high if account records are incomplete or inaccurate

Customer, Operational, Compliance

Dependent on core banking availability

Define manual approval queue and post-recovery validation

1.4

Initial Funding and Deposit Booking

2 hours

Near-zero for deposit transactions

Customer funds not reflected; customer confidence affected

High if customer balances or ledger postings are inaccurate

Financial, Customer, Regulatory

Requires strong core banking and teller controls

Prioritise transaction integrity, reconciliation, and exception queues

1.5

Product Terms Setup and Account Parameter Maintenance

1 business day

4 hours

Incorrect interest, fees, limits, or product conditions

Moderate if customers are charged incorrectly

Operational, Financial, Conduct

Controlled through the maker-checker process

Tighten change controls and parameter validation

1.6

Deposit Transactions Processing

2 hours

Near-zero

Customers cannot deposit funds; balances are not updated

High if ledger integrity or customer funds are affected

Customer, Financial, Operational

Critical dependency on branch and core banking platforms

Strengthen alternate posting, offline teller procedures, and reconciliation

1.7

Withdrawal and Funds Access Processing

1 hour

Near-zero

Customers are unable to access funds through the branch, ATM, or card channels

High if access to funds is materially disrupted

Customer, Liquidity, Reputational

High dependency on core banking, ATM, and card switch

Establish channel failover and emergency cash access procedures

1.8

Account Servicing and Customer Maintenance

1 business day

4 hours

Customer profile updates delayed; service requests accumulate

Moderate if customer records become inaccurate

Customer, Operational, Conduct

Partially resilient through branch service channels

Maintain manual service request logging and backlog prioritisation

1.9

Interest, Fees, and Charges Processing

End of processing day

4 hours

Incorrect interest or charges; customer complaints

Moderate to high if systemic fee or interest errors occur

Financial, Conduct, Regulatory

Batch-dependent process

Strengthen batch recovery, recalculation, and customer remediation controls

1.10

Statement, Passbook, and Balance Reporting

1 business day

4 hours

Customers cannot confirm balances or transactions

Moderate if reporting delays affect transparency

Customer, Conduct, Reputational

Available through branch and digital channels, subject to system availability

Ensure alternate balance enquiry and statement regeneration capability

1.11

Digital Account Access and Channel Integration

2 hours

Near-zero for completed transactions

Customers are unable to view balances, transfer funds, or manage accounts online

High if the outage affects a large customer base or e-channel availability

Customer, Technology, Reputational

Dependent on online banking and network services, Equicom offers online/phone banking services

Strengthen digital channel monitoring, failover, and customer notification

1.12

ATM and Card-Based Access Management

2 hours

Near-zero

Customers are unable to withdraw cash or use card-linked account access

High if widespread cash access is impaired

Customer, Operational, Third Party

Dependent on ATM/card networks, Equicom deposit products include ATM/debit card access via BancNet/VisaPlus ATMs

Validate ATM switch resilience, network escalation, and alternate cash access

1.13

Account Reconciliation and Exception Handling

End of processing day

Near-zero for financial exceptions

Unresolved mismatches; risk of incorrect balances

High if reconciliation breaks affect financial reporting

Financial, Operational, Regulatory

Daily reconciliation expected

Implement same-day exception triage and ageing thresholds

1.14

Dormancy, Holds, Restrictions, and Account Control Administration

4 hours

1 hour

Restricted or dormant accounts may be mishandled

High if legal, fraud, AML, or court-related restrictions fail

Compliance, Fraud, Legal

Control-sensitive process

Strengthen dual control and emergency restriction procedures

1.15

Fraud Monitoring and Transaction Surveillance for Deposit Accounts

1 hour

Near-zero for alerts and cases

Fraudulent activity may continue undetected

Very high due to AML, fraud, and customer protection implications

Fraud, Regulatory, Customer

Requires continuous monitoring

Ensure alert continuity, manual monitoring, and cyber-fraud escalation

1.16

Complaints, Disputes, and Service Recovery

1 business day for intake; regulatory timelines for closure

4 hours

Complaints unresolved; customer dissatisfaction escalates

High if regulatory complaint timelines are breached

Customer, Conduct, Regulatory

Case management-dependent

Maintain manual complaint register and priority dispute process

1.17

Regulatory Reporting and Compliance Monitoring

Regulatory deadline-driven; no missed statutory deadline

Near-zero for submitted regulatory data

Limited direct customer impact but high institutional impact

Very high if BSP reports are late, incomplete, or inaccurate

Regulatory, Compliance, Reputational

Dependent on data extraction and compliance review

Establish reporting fallback, data validation, and senior sign-off protocol

Regulatory Requirements and Examples for Philippine Banks

For a Philippine bank, BSP Circular No. 1203 requires tolerances for disruption to be set for each identified critical operation.

These tolerances should be reviewed, challenged, and approved by the board of directors and remain responsive to changes in the business and threat environments.

Examples for Deposit and Account Services include:

 

Regulatory Expectation

Example for Equicom Savings Bank

Identify critical operations

Deposit taking, account opening, cash withdrawals, balance reporting, and fraud monitoring are considered critical because they affect customers’ access to funds.

Set tolerance for disruption

Digital account access may have a 2-hour MTD, while withdrawal access may have a tighter 1-hour MTD due to direct customer harm.

Use quantitative and qualitative metrics

Metrics may include downtime, number of customers affected, volume of failed transactions, value of impacted deposits, and customer complaints.

Test against severe but plausible scenarios

Test core banking outage, ATM switch failure, cyberattack on online banking, third-party network failure, or unavailable KYC screening provider.

Use results to strengthen resilience

Where tolerance is breached, Equicom should improve failover, manual workarounds, vendor escalation, reconciliation, and customer communication.

 

Setting impact tolerances for CBS-1 Deposit and Account Services allows Equicom Savings Bank to define how much disruption it can absorb before customer harm, regulatory breach, financial loss, or reputational damage becomes unacceptable.

These tolerances provide practical thresholds for prioritising recovery, allocating resilience investment, designing scenario tests, and strengthening operational controls.

The proposed tolerances should be validated by business owners, risk management, compliance, IT, operations, and senior management before board approval.

Once approved, they should be tested regularly against severe but plausible scenarios and updated whenever there are material changes in systems, products, customer channels, third-party dependencies, or BSP regulatory expectations.

 

eBook 3: Starting Your OR Implementation
CBS-1 Deposit and Account Services
CBS-1 DP CBS-1 MD CBS-1 MPR CBS-1 ITo CBS-1 SbPS CBS-1 ST

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