Wisconsin Data Security and Privacy Laws: What You Need to Know
No Statewide Consumer Privacy Law (Yet)
As of October 2025, Wisconsin does not have a comprehensive state data privacy law regulating all businesses and consumer data. Instead, organizations must comply with:
- Sectoral federal laws (HIPAA, GLBA, COPPA, etc.)
- State data breach notification statute (Wis. Stat. § 134.98)
- Any contractual, regulatory, or industry-specific requirements (e.g., PCI DSS, NIST SP 800-88)
Recent efforts to create a Wisconsin Consumer Data Protection Act (AB 172/SB 166, 2025) remain stalled in the legislature and are not effective as of 2025.
Key Source: Wis. Stat. § 134.98 – Data breach notification
Core State Data Security Requirement
- “Reasonable security measures” are mandatory. Entities must implement appropriate administrative, technical, and physical safeguards to protect personal information.
- Applicability: Any business, government agency, or lender operating in Wisconsin and handling resident data.
- Enforcement: Wisconsin Department of Agriculture, Trade and Consumer Protection (DATCP) and the Attorney General.
- No private right of action: Only state authorities can enforce.
Data Breach Notification Triggers
- If an unauthorized “acquisition” of unencrypted personal information occurs, notification to affected individuals is required—within 45 days of discovery.
- “Personal information” includes a broad set of identifiers: name plus Social Security number, driver’s license, account details with access codes, or biometric data.
- If >1,000 residents are affected: You must also notify consumer reporting agencies.
- Penalties: Up to $10,000 per violation, enforceable by state agencies.
- Methods: Direct mail, electronic notice (if customary), or substitute notice (email, website, media) in cases of high volume or cost.
See full statute: Wis. Stat. § 134.98
Proposed Privacy Legislation (Pending for 2027+)
- AB 172/SB 166 (2025) would grant consumers rights to access, correct, delete, and opt out of certain data uses.
- >100,000 consumers processed or 50%+ revenue from data sales to trigger compliance.
- Not law as of October 2025. Monitor for changes in 2026–27.
Track bill status: AB 172 full text and history
Digital Data Destruction and Hard Drive Disposal: Wisconsin-Specific Compliance
Federal and Best Practice Standards Apply
Because Wisconsin lacks a state-specific destruction mandate, enterprises must rely on:
- Federal regulations: HIPAA, GLBA, PCI DSS, etc.
- NIST SP 800-88 (Rev. 1): Gold standard for media sanitization and official NIST guidance
- NAID AAA Certification: Validates secure destruction process and chain of custody (NAID AAA details)
Legal Risk: The “Delete” Myth
Merely deleting or reformatting is not sufficient. Data remnants remain recoverable, creating breach risk and civil penalty exposure if disclosed.
Compliant Enterprise IT Asset Disposition (ITAD) Steps
- Create a defensible data destruction policy.
- Tie protocols to NIST SP 800-88 guidelines and all applicable statutes.
- See why policy matters
- Use proven destruction methods:
- For hard drives (HDD): Shredding, degaussing (when permitted), or certified wiping per NIST 800-88.
- For SSDs, mobile devices, flash media: Physical shredding or cryptographic erase.
- Ensure destruction is witnessed, documented, and matches regulatory risk.
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- Maintain a secure chain of custody:
- Full asset serialization, locked transport, NAID AAA facility assurance, staff background checks.
- Obtain certificate of destruction (CoD) documenting serials, time, method, and witness.
- Avoid landfilling digital storage devices.
- State e-waste law bans landfilling for most consumer electronics, and secure destruction ensures recovered materials can enter compliant recycling.
- Monitor both state and federal breach notification laws.
- Timing, trigger definitions, and notice mechanisms must be followed exactly.
Additional reference: How NIST 800-88 applies to your ITAD
Wisconsin E-Waste Recycling and Electronics Disposal Laws
E-Cycle Wisconsin: Statute § 287.17 (Enforced by WDNR)
Summary:
Wisconsin’s E-Cycle Wisconsin program (enacted 2009, updated for 2025) implements strict controls over end-of-life electronics, but covers only households and K–12 schools. Businesses must still follow landfill bans and cannot dispose of covered electronics as trash.
Key Requirements for 2025:
- Covered Devices: Televisions, computers, computer monitors, printers, peripherals, video game consoles, and more.
- Landfill/Incinerator Ban: No covered devices may be disposed of in state landfills or incinerators—applies to all entities (including businesses).
- Recycling Mandate: Manufacturers must register and finance collection/recycling; recyclers require special registration, insurance, and reporting.
- Business Assets: Not eligible for free E-Cycle, but must use licensed recycling providers.
- Documentation: Recyclers must keep records for 3 years and comply with WDNR rules.
Updates for 2025:
- Manufacturers’ recycling targets: ~19.5 million pounds statewide; new market-share calculation method.
- Statewide results: 18.8 million pounds collected in 2024; all 72 counties served.
- Challenges: Battery fire risk, gaps in coverage, pending rules for expanded battery collection and stricter recycler standards by 2027.
WDNR E-Cycle Program Details: E-Cycle Wisconsin Official Site | 2025 E-Cycle Report PDF
ITAD and E-Waste: Business Obligations
- Do not landfill electronics: Even for commercial assets, use certified e-waste recyclers.
- Combine secure data destruction with compliant recycling: Partnering with a NAID AAA/R2v3/e-Stewards certified vendor ensures both removal of sensitive data and legal recycling of device materials.
- Maintain full tracking: Get documentation of transfer, data destruction, and materials recovery.
State Law Reference: Wis. Stat. § 287.17 full text
Why Choose Data Destruction, Inc. for Wisconsin Data and E-Waste Compliance
- Full NIST SP 800-88 alignment: All destruction methods and reporting exceed national best practices (NIST SP 800-88)
- NAID AAA and R2v3/e-Stewards certification: The highest third-party assurance of process security and environmental compliance
- Unbroken chain of custody, on-site or off-site: Complete serialization, GPS-tracked logistics, and secure facilities
- Certificates of destruction for your audit and legal defense
- Custom program design: We navigate federal, state, and local rules for you, minimizing regulatory and breach risk
- Local Wisconsin experience: Support for public, private, and multistate enterprises operating in the Midwest
Contact us today to eliminate risk and ensure compliance with all digital data destruction and e-waste laws in Wisconsin:
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