DATA GOVERNANCE & DISPOSAL CONSULTING
Data Security Consulting: From Retention Governance to Audit-Ready Data Destruction
Datasan helps institutions design retention policies, secure decommissioning procedures, and verified data destruction mechanisms. Every stage follows NIST SP 800-88 and ISO/IEC 27001, with documentation you can present to auditors and regulators.
Most information security programs focus on protecting data in use: firewalls, encryption, access controls. But the data lifecycle does not end there. Thorough data security consulting must answer a question that is too often ignored: what happens to data when its useful life ends — when servers are replaced, laptops are written off, cloud contracts expire, or archives pass their retention period.
Indonesian regulation has turned that question into a legal obligation. Law No. 27 of 2022 on Personal Data Protection (the PDP Law) requires data controllers to erase and/or destroy personal data under certain conditions, including when the retention period ends, and demands accountability for that processing. Government Regulation 71/2019 obliges electronic system operators to safeguard information security, while sectoral regulators — from OJK for financial institutions to the Ministry of Health through Permenkes 24/2022 for electronic medical records — set their own retention and data management requirements.
The problem is that compliance cannot be proven with good intentions. Auditors and regulators ask for evidence: written policies, retention schedules, destruction procedures referencing standards such as NIST SP 800-88, and per-asset destruction certificates. Datasan's data security consulting is designed to close this gap — from policy formulation to verified destruction — so that your end-of-life data governance rests on documents, not assumptions.
Governance Gaps That Only Surface During Audits
Retention policies are missing or not enforced
Many institutions keep data indefinitely because no agreed retention schedule exists. Data that should have been destroyed becomes a legal liability and widens the impact of any breach.
Retired IT assets pile up with residual data
Servers, hard drives, tapes, and laptops from refresh cycles often sit in storage for years with no clear status. Each of those media may hold recoverable personal data and business secrets.
PDP Law obligations without demonstrable evidence
The PDP Law requires controllers to be accountable for erasing and destroying personal data. A standard reformat leaves no proof whatsoever that data is truly unrecoverable.
Destruction methods that do not match the media
Degaussing is ineffective on SSDs, and logical deletion alone can leave data in untouched areas. Without a per-media method mapping aligned with NIST SP 800-88, residual data risk stays open.
What Datasan's Data Security Consulting Covers
Retention policy and data classification design
We help build retention schedules per data category aligned with the PDP Law and your sectoral rules, with sensitivity classification as the basis for choosing destruction methods.
Secure asset decommissioning procedures
We design a standard flow from asset withdrawal and chain-of-custody recording through sanitization or destruction — so no storage media leaves your organization with an undocumented status.
Method selection under NIST SP 800-88
Each media type is mapped to the appropriate Clear, Purge, or Destroy method: overwrite or crypto-erase for SSDs, degaussing for magnetic media, and physical destruction for highly classified data.
Destruction evidence and audit trail
Every execution produces a per-asset destruction certificate with serial number, method, timestamp, and operating personnel — evidence in a format accepted by internal auditors, external auditors, and regulators.
Alignment with ISO/IEC 27001 and internal SOPs
The policies and procedures we produce are mapped to ISO/IEC 27001 controls on media handling and disposal, with team training so the practice stays consistent after the engagement ends.
We have applied this approach with financial institutions, healthcare providers, and state-owned enterprises in Indonesia, with destruction documentation accepted in their audit processes.
How the Engagement Works
Assessment and data mapping
We map your data types, storage locations, physical media, and applicable regulatory obligations — including retired assets with unclear status. The result is a picture of your end-of-life data risk and its handling priorities.
Policy and procedure design
Based on the assessment, we draft the retention policy, decommissioning procedures, and a per-media destruction method matrix referencing NIST SP 800-88. Drafts are reviewed with your legal, IT, and risk teams until formally approved.
Sanitization and destruction execution
For assets that are due, the Datasan team performs sanitization or destruction per procedure — available on-site at your premises — with chain of custody recorded from the moment assets are handed over.
Verification and audit documentation
Each medium is verified after processing, then destruction certificates and a summary report are issued. This documentation serves as compliance evidence ready for ISO 27001 audits, internal audits, and regulatory examinations.
Frequently Asked Questions
What is the difference between ordinary deletion and secure data destruction?
Deleting files or reformatting only removes pointers to the data; the content can often still be recovered with forensic tools. Secure destruction uses verified methods — overwrite, crypto-erase, degaussing, or physical destruction — so data cannot be recovered, and the process is documented as evidence.
Does Indonesia's PDP Law mandate a specific destruction method?
No. The PDP Law requires erasure and/or destruction of personal data under certain conditions and holds controllers accountable, but it does not prescribe the technical method. Common practice is therefore to adopt international standards such as NIST SP 800-88 as the reference for methods and proof.
Which standards does this consulting engagement follow?
Our primary references are NIST SP 800-88 Rev. 1 for media sanitization methods (Clear, Purge, Destroy) and ISO/IEC 27001 for media handling and disposal controls within an information security management system. Both are aligned with Indonesian obligations such as the PDP Law and GR 71/2019.
How do we determine retention periods for our institution?
Retention periods come from a combination of sectoral requirements, business needs, and the storage limitation principle in the PDP Law. Healthcare, for example, is subject to medical record retention rules in Permenkes 24/2022, while financial institutions follow OJK provisions; our consulting maps these obligations per data category.
Is the destruction method the same for every type of media?
No, and this is where many mistakes happen. Degaussing works on magnetic media such as HDDs and tapes but does not erase data on SSDs, so SSDs require crypto-erase, appropriate overwriting, or physical destruction. A per-media method matrix under NIST SP 800-88 is a core deliverable of this engagement.
What evidence do we receive after destruction is performed?
You receive a per-asset destruction certificate stating the media identity, serial number, method used, execution time, and operating personnel, along with a summary report and chain-of-custody records. These documents are designed to be used directly as evidence in audits and regulatory examinations.
DATA GOVERNANCE & DISPOSAL CONSULTING
Start with an Assessment of Your Data Governance
Discuss your institution's retention posture, retired assets, and compliance obligations with a Datasan consultant. We will help map your end-of-life data risk and build a plan you can defend in front of auditors.
