Deleting evidence vs protecting yourself. What’s legal and what’s not.
Short answer
The instinct to delete is understandable. It is also one of the fastest ways to turn a difficult situation into a worse one.
Spoliation of evidence, which is what courts call destroying or altering material relevant to a legal proceeding, is treated seriously. The consequences: adverse inference instructions where the judge tells the jury they can assume the deleted content was harmful to you, sanctions against your legal position, in some cases criminal exposure. The content of what you deleted stops being the issue. The act of deleting it becomes the issue.
When the duty to preserve begins
Not when you file. Not when a lawyer sends a formal letter. The duty attaches when you know, or reasonably should know, that litigation is likely. Which means: if you are already researching divorce checklists, it has probably already begun.
You still have rights over your own data. What changes is that exercising those rights unilaterally, without understanding your preservation obligations, creates risk. The window between thinking about filing and needing legal advice on what you can and cannot delete is very short.
The companion to this rule is in why you should assume your devices are already compromised before filing for divorce. Together, the two articles describe the only operationally safe sequence: secure access without deleting, then talk to a lawyer about what to keep.
What counts as spoliation in practice
Communications directly relevant to the dispute. Messages, emails, call logs that relate to financial claims, custody arrangements, or whatever is being contested. If money is in dispute, communications about money are in scope. If custody is disputed, anything revealing your parenting situation or living arrangements is in scope.
Documents that contradict your filings. Financial records, photos with location metadata that place you somewhere at a specific time, calendar entries. These don’t need to live in a folder you deliberately created. They can be embedded in your photo library, your calendar sync, your email headers.
The reason metadata is increasingly the centre of these disputes is unpacked in metadata versus content, what actually matters in court. The smoking gun is rarely in the message. It is in the timestamp of the message.
Social media content. Posts, comments, anything publicly accessible that is relevant to claims in the proceeding. Courts have required production of private social media content in cases where relevance is established. The platform’s privacy setting has no bearing on that.
The pattern of judges using Instagram posts against people in court is documented across jurisdictions. A post that contradicts a financial declaration is not deleted into safety, it is deleted into spoliation.
What you can legitimately do
Securing access going forward is not evidence destruction. Changing passwords, revoking shared account access, enabling two-factor authentication: these protect you from ongoing surveillance without touching anything that already exists.
Moving to secure communications for future conversations is not evidence destruction. Using Signal or Proton Mail going forward creates no preservation obligation for communications that haven’t happened yet. Choosing the right channel for the right conversation is covered in Signal versus ProtonMail versus Wire.
Removing yourself from data broker sites is not evidence destruction. It closes exposure to public information about your address and contact details. It has no effect on anything relevant to proceedings.
The line, stated plainly: protecting what hasn’t happened yet is fine. Destroying what already exists and is relevant to an anticipated dispute is spoliation. The line runs through legal advice, not through what feels reasonable under pressure at 2am.
Frequently asked questions
What is spoliation of evidence?
The destruction, alteration, or failure to preserve material that is relevant to a legal proceeding. Consequences include adverse inference instructions, where the court tells the jury to assume the deleted material was harmful to you, sanctions, and in some cases criminal liability.
Can I delete text messages during a divorce?
Not safely, without legal advice specific to your situation. If those messages are relevant to claims in the proceeding, and the duty to preserve has already attached, deleting them creates spoliation risk that is worse than whatever the content might show. Speak to a lawyer before deleting anything connected to the dispute.
Is using disappearing messages a form of spoliation?
It can be, in active or anticipated proceedings. Some courts have ruled that switching to ephemeral messaging once a duty to preserve has attached qualifies as evidence destruction by design. The technical feature does not change the legal obligation. If you are already on the way to court, ask the lawyer before changing the message-retention settings on any channel that touches the dispute.
Can my lawyer hold material I am worried about?
Yes. Documents and messages handed to your lawyer are preserved under their custody, with attorney-client privilege protecting the surrounding conversation. The material itself remains discoverable if it is relevant. Privilege protects what you said about it, not the underlying facts. The advantage is that nothing is deleted, which is the question spoliation hinges on.
There’s no perfect setup. Anyone selling you perfect is selling fear. The goal is simple: make yourself a harder target than the person next to you.
