How we define "data security assessment"
Data Security Assessment, DSA) is for enterprises inData life cycleRisks faced in (collection/transmission/storage/use/sharing/deletion)、Systematic verification of the effectiveness of control measures and implementation。For Hong Kong Information Communications，The assessment goal is not just to “meet the terms”，It is even more formedAble to supervise、bank、Reuse of partners and auditorsA set of evidence-based materials and a rectification roadmap，Reduce compliance and business disruption risks。
We adopt the method of "Business Scenario - Data Assets - Threat Model - Control Mapping - Forensic Verification - Rectification Closed Loop"，Focus on solving the following three types of high-frequency problems：
1) Where is the data?、who is using、To whom (data visualization and traceability)；
2) control is done、Whether it is effective (system + technology + operation trinity verification)；
3) How to satisfy due diligence and inquiry (contract) in cross-border/outsourcing/cloud scenarios、log、Permissions and evidence of ongoing monitoring)。
Applicable objects and compliance framework (can be selected based on business)
Focus on transaction data、customer identification data、Blacklist and monitoring data access control、leave traces、Encryption and retention management。
Focus on API and key management、Wallet/custody related sensitive data、Third-party dependence and supply chain risks、Monitoring and Alert Effectiveness。
Covering cross-border data flow mapping、shared boundaries、data minimization、Outsourcing and shared governance and evidence chain within the group。
Sort out multiple legal persons、multiple systems、Multi-region permissions and data domains，Avoid "same control but different standards" and "faulty implementation of the system"。
Assessments can align a variety of commonly used frameworks and regulatory concerns (select calibers based on client business and location)：
Information Security and Privacy Management：ISO/IEC 27001、27701、NIST CSF/800-53；
Data and Privacy Compliance：Local personal data/privacy regulatory requirements、Cross-border transfers and sharing compliance requirements with third parties；
Financial compliance linkage：AML/KYC Data Governance、Transaction monitoring data retention and interpretability、Audit traceability requirements。
If you need to simultaneously promote privacy compliance，Connectable：Personal information protection and Data privacy policy development。
Assessment scope：From "data inventory" to "control effectiveness"
We recommend breaking down the scope of the assessment into eight actionable dimensions，Facilitate the formation of a clear gap list (GAP List) and rectification priorities：
- Data asset inventory and classification：customer identification information、Transaction and Fund Flow Data、Device and behavioral data、Risk control and monitoring model data、Employee and supplier data, etc.。
- Data flow mapping (including cross-border)：system room、API、file exchange、BI/data warehouse、Customer Service/Work Order、The flow paths and shared boundaries between third-party SaaS/outsourcing。
- Permissions and Identity Governance：least privilege、Segregation of duties、Privileged account、Resignation and changes、Visit review、MFA and key rotation。
- Encryption and key management：Transmission/storage encryption、HSM/Key Escrow、Certificate life cycle、Key permission separation and auditing。
- Log traces and auditability：Key operation log、Query and export audit、Centralized storage、Tamper proof、Retention period and retrieval walkthrough。
- Security development and change management：SDLC、code review、Vulnerability management、Dependent components and supply chain、Configuration baselines and change approvals。
- Third Party and Outsourcing Management：Due diligence、Contract security clauses、data processing instructions、Subcontracting control、退出机制、Continuously monitor evidence。
- Incident response and business continuity：Alarm closed loop、graded response、Exercise records、Evidence collection and review、RTO/RPO and backup recovery verification。
Deliverables：Reusable、auditable、Can be floored
Output data directory、System inventory、Shared list and cross-border transfer path，Clarify the boundaries between data owners (Owner) and processors。
Break down risks by business scenarios，Mapping controls and effectiveness conclusions，Attached is an index of key evidence to facilitate audit spot checks。
Sort by risk level/business impact/implementation cost，Provide short, medium and long-term rectification plans and milestones。
Authority governance、Log retention、Outsourcing management、emergency response、Institutional implementation suggestions such as data retention and deletion。
If it is necessary to link with business system construction，We can connect：KYC identity verification system、eDon TM Transaction Monitoring System、Hong Kong Xintong AML/CRM Compliance System，Form a consistent evidence chain of "data-risk control-compliance"。
Implementation process：Closed-loop approach from interview to re-evaluation
Clarify business boundaries、system wide、Key data types、Third-party checklist and evaluation standards。
collection system、Architecture、Ledger、contract、Log sample；Interview Business/Technology/Security/Legal Affairs/Operations。
Sort out data asset catalog and data flow diagram，Identify shared/cross-border/outsourcing nodes and critical control points。
to permissions、encryption、log、change、supplier、Incident response and other control execution sampling verification。
form a risk score、Gap list and remediation priorities，Define responsible persons and target timelines。
Review key corrective items，Solid audit evidence package and management reporting materials。
Frequently Asked Questions and High-Frequency Correction Points (Regulatory/Bank Due Diligence Perspective)
The following are the "high-frequency failure points" that we often find in financial and cross-border business，This is also the part of due diligence that banks and large partners pay most attention to.：
- Excessive permissions and lack of review：Shared account、Privileged accounts are not isolated、Resignation authority was not recovered in time、Lack of periodic access review records。
- Log is not available：There are logs but scattered、No centralized search、Unable to link to individual、Retention period does not meet business and compliance needs，or lack of tamper-proof measures。
- Weak third-party management：Contract lacks data processing clauses/audit rights/subcontracting restrictions；Suppliers lack annual review and exit plans。
- Data sharing boundaries are unclear：Shared within the group、Outsourced customer service/operation sharing、BI report export lacks approval and traces，It is difficult to answer the question "To whom?"、Why give、What was given?”。
- Cloud configuration risks：Bucket/database exposed on public network、Weak key management、Missing baselines and continuous configuration audits。
- Emergency response “on paper”：Lack of exercise evidence、Alarm closed loop、Evidence collection process and external communication mechanism，Unable to quickly self-certify and stop losses after the event occurs。
If cross-border compliance requirements are involved，It is recommended to simultaneously evaluate the consistency of business links and external materials.，If necessary, it can be extended to：Marketing material review and Cross-border business compliance。
Fee structure reference (including common cost matrix for MSO applications in Hong Kong)
The project cost of a data security assessment typically depends on the number of systems、Number of third parties、Whether it involves cross-border data flows and whether it is necessary to issue an external audit evidence package。If your assessment is progressing in parallel with licensing/bank due diligence，It is recommended that data security work be integrated into the overall compliance budget for coordination。
The following areHong Kong MSO (Money Service Operator) applicationCommon cost matrix (HKD) for budget planning reference：
| category | project | Reference fee (HKD) | illustrate |
|---|---|---|---|
| government fees | License application fee | 3,310 | According to government standards |
| government fees | Fit & Proper suitability review | 860/people | By number of key personnel |
| Basic investment | Company registration/establishment | 8,000-15,000 | Depends on structure and scope of services |
| Basic investment | Office address and operations | 20,000-80,000/Year | Depends on location and size |
| service organization | MSO application service | 60,000-150,000 | Containing material organization、Process management and communication support |
| service organization | AML Compliance Documents (Regulations/Procedures/Record Templates) | 20,000-80,000 | Based on business complexity and customization depth |
| total | standard interval | 150,000-400,000 | Does not include individual audits、Penetration testing or special modification costs |
If you promote account opening and compliance construction at the same time，Can be referenced：Hong Kong (HSBC/Standard Chartered/Hang Seng) account opening and Fintech Compliance Consulting，Unify the material caliber and evidence chain at one time，Reduce repeated communication costs。
FAQ：8 issues that companies are most concerned about
Not equal。Penetration testing and technical vulnerability verification；Data security assessment places more emphasis on data assets、data flow、Permissions、log、third party、System process and control effectiveness evidence collection。Penetration testing can be included as a technical component of the assessment when necessary。
usually include：System inventory and architecture、Data dictionary/field description (if any)、Permission model and roles、Logging policy、Cloud resource inventory、Supplier Contracts and SLAs、Safety systems and procedures、Event and alarm record samples, etc.。
The key is to form a combined evidence chain of "data flow mapping + shared list + contract terms + approval and traces + minimal explanation + continuous monitoring evidence"，And ensure that the business caliber is consistent with external materials。
Will affect risk level and rectification priority。We tier suppliers based on data sensitivity and access rights，Give contract reinforcement、technical isolation、Suggestions for a combination of monitoring and exit mechanisms。
assessment by interview、Configuration verification、Focusing on sample inspection and evidence collection，By default, it will not affect production.；If it involves scanning or testing，Window period arrangements and change approval will be carried out in advance。
Can。We will use "explainable"、Can be randomly checked、“Reviewable”-oriented evidence package，Facilitate response to bank due diligence inquiries and customer security audit sampling。
Rating based on "data sensitivity × exposure × degree of abuse × business impact"，And combined with the rectification of input and output，First deal with the four types of high-leverage items: permissions/keys/logs/outsourcing。
It is recommended to establish a quarterly or semi-annual re-evaluation mechanism，Review permissions、Log spot check、Supplier review、Drill records are incorporated into the fixed operating rhythm，And can be connected to the risk assessment system solidification process。
Next step：with license、Linkage of risk control and privacy compliance
If your goal is to also meet regulatory compliance、Bank due diligence and customer audit，It is recommended to promote data security assessment in conjunction with the following modules：
- Fintech Compliance Consulting：Incorporate data governance into the overall compliance framework and audit evidence chain。
- Personal information protection / Data privacy policy development：Unify external disclosure and internal systems，Reduce the risk of caliber inconsistency。
- risk assessment system：Productize the identification-disposition-re-evaluation process，Support ongoing compliance。
- Cross-border business compliance：Legal and operational closed loop covering cross-border data flows and outsourcing links。
If you need our assistance with scoping and preliminary diagnosis，Please pass about Us Submit your system inventory and business profile，We will provide an executable assessment plan and delivery checklist。
