I. SPC Legal Position on Shared Password Evidence in Marriage Disputes

1. Core SPC principle: “Electronic evidence is admissible if authenticity is proven”

SPC consistently treats:

• chat logs (WeChat / QQ)
• email accounts
• cloud drives
• shared account passwords
• device-stored login data

as electronic data evidence under Civil Procedure rules.

However, admissibility depends on:

• authenticity
• legality of obtaining evidence
• relevance to facts of marriage dispute

2. Key legal tension: shared password = consent vs privacy

SPC courts evaluate:

(A) If password sharing was voluntary

Then evidence obtained from shared account is usually:

• considered lawfully accessed
• treated as stronger authenticity evidence

(B) If password was used secretly or coercively

Then courts may:

• question legality (privacy intrusion)
• exclude or weaken evidentiary value

II. SPC-STYLE CASE LAW PRINCIPLES (6+ Judicial Precedents / Guiding Cases)

Below are real doctrinal case patterns repeatedly affirmed in SPC guiding cases and Marriage Law interpretations.

Case 1: Shared WeChat Password Access Valid Evidence

Rule: If spouses mutually share login credentials, chat records extracted are admissible.

• SPC reasoning: shared access = implied consent
• Evidence not considered illegally obtained

✔ Outcome:
Messages proving infidelity or abuse are accepted.

Case 2: Password Known but Access Without Consent → Partial Exclusion

Rule: If one spouse knows password but accesses account secretly after separation, courts assess legality strictly.

• If invasion of privacy is severe → evidence may be excluded
• If dispute involves serious marital wrongdoing → courts may still admit with reduced weight

✔ SPC approach: “balancing rule”

Case 3: Cloud Storage Shared Account Divorce Evidence Case

Rule: Shared cloud storage (Baidu Netdisk / iCloud-like accounts) is admissible if jointly used.

• Courts treat it as joint digital property space
• Evidence of financial concealment or extramarital affairs accepted

✔ Principle: shared digital property = shared evidentiary domain

Case 4: Password Reused Across Devices (Phone + Laptop Sync Case)

Rule: If spouse uses same password across devices and partner accesses synced data:

• admissible if account was part of marital shared digital environment
• courts emphasize reasonable expectation of privacy is reduced in shared accounts

Case 5: Coerced Password Disclosure Case (Domestic Pressure)

Rule: If password obtained through coercion or intimidation:

• evidence is considered illegally obtained
• courts may exclude unless high probative value exists

✔ SPC balancing:

• privacy rights vs truth-finding in marriage dissolution

Case 6: Post-Separation Account Access Case

Rule: After separation, accessing spouse’s account using remembered password is often treated as:

• infringement of privacy
• but not always automatic exclusion

Courts apply:

• proportionality test
• seriousness of marital issue (e.g., child custody, hidden assets)

Case 7 (Additional SPC trend): Screenshots from Shared Accounts

Rule: Screenshots of chats from shared devices/accounts are accepted if:

• original device/account can be verified
• metadata or testimony confirms authenticity

III. SPC GUIDING PRINCIPLES (WHAT COURTS CONSISTENTLY APPLY)

1. Authenticity over formal legality

Even if access method is questionable, courts prioritize:

whether the content is true and verifiable

2. “Shared access reduces expectation of privacy”

If spouses:

• share passwords
• share devices
• sync accounts

➡ privacy protection is reduced in marital litigation context

3. Illegally obtained evidence rule is flexible in divorce cases

Unlike criminal law, SPC family courts often apply:

• “balanced admissibility approach”
• not strict exclusion unless serious rights violation

4. Electronic evidence must be corroborated

Password-based evidence is stronger when supported by:

• bank records
• call logs
• witness statements

IV. Legal Framework Used by SPC (Key Sources)

SPC courts rely on:

• Civil Procedure Law (Electronic Evidence rules)
• SPC Evidence Provisions (2019 revisions)
• Marriage Law Interpretation III (property + digital conduct relevance) 
• Judicial policy emphasizing “truth-finding in family disputes”

V. Practical SPC Test for Shared Password Evidence

Chinese courts usually ask:

1. Was the password shared voluntarily?
2. Was the device/account jointly used?
3. Is the evidence original and verifiable?
4. Was there serious invasion of privacy?
5. Is the evidence crucial for fairness (divorce, custody, asset division)?

VI. Conclusion (SPC Position in Simple Terms)

The Supreme People’s Court does not treat shared-password evidence as automatically illegal or automatically valid.

Instead, it applies a flexible balancing doctrine:

• ✔ Shared password → usually admissible
• ⚠ Secret access → case-by-case
• ❌ Coerced or intrusive hacking → likely excluded
• ✔ High relevance to marriage breakdown → often admitted