A screenshot of a damaging text exchange may be useful for an early case assessment. It is rarely enough to establish a defensible record. Knowing how to preserve text messages for litigation means protecting the message content, its surrounding context, the underlying metadata, and the ability to explain exactly where the evidence came from.
Text messages now appear in employment disputes, commercial litigation, investigations, regulatory matters, and government claims with regularity. They may reside on personal phones, company-issued devices, cloud backups, messaging platforms, tablets, smartwatches, and computers. The preservation decision made in the first hours after a dispute arises can determine whether that evidence remains usable months later.
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Start Preservation When the Duty Is Reasonably Anticipated
The duty to preserve electronically stored information is not limited to the day a complaint is filed. It can arise when litigation is reasonably anticipated, including after a demand letter, an internal complaint, a regulatory inquiry, a termination involving a likely dispute, or notice of a threatened claim.
Counsel should promptly identify the custodians most likely to have relevant communications and issue a written legal hold tailored to the matter. A generic notice that says “save all texts” is often too vague to be operationally effective. The hold should identify the relevant date range, subjects, people, communication channels, and the steps custodians must take to prevent deletion or alteration.
Mobile devices require specific instructions. Custodians should be told not to delete messages, reset or replace devices without notice, change retention settings, enable disappearing messages, or attempt to clean up conversations. They should also be instructed not to forward, copy, or selectively transcribe messages as a substitute for preserving the original data.
Under Federal Rule of Civil Procedure 37(e), loss of electronically stored information can lead to remedial measures when the information should have been preserved, cannot be restored or replaced through additional discovery, and was lost because reasonable steps were not taken. State rules and the facts of a particular matter may require a different analysis, but the practical lesson is consistent: act early and document the response.
How to Preserve Text Messages for Litigation Defensibly
A defensible process preserves more than what appears in a conversation bubble. Depending on the device and application, relevant information can include sender and recipient identifiers, timestamps, message status, attachments, reactions, edits, deleted-message indicators, conversation threading, and device details.
Preserve the original source before creating copies
The first priority is to stabilize the source. For a company-controlled phone, that may mean collecting the device promptly or instructing the custodian to keep it available and unchanged until collection occurs. For a personal device subject to a lawful preservation obligation, counsel should establish a process that is proportionate to the case and respectful of personal privacy while still protecting potentially relevant evidence.
A full forensic collection is not necessary in every matter. The appropriate method depends on the claims, the volume of communications, the device type, whether deletion is suspected, the availability of cloud data, privacy limitations, and the expected value of the evidence. Still, a collection method should be selected because it can be explained and repeated, not merely because it is convenient.
Use screenshots as a reference, not the complete record
Screenshots can capture visible text quickly, and they may help counsel identify urgent issues. Their limits are substantial. They can omit earlier or later messages, conceal the identity associated with a phone number, fail to show the device time zone, omit attachments, and be difficult to authenticate. They also do not reliably preserve searchable metadata.
If screenshots are used during initial preservation, capture the full thread with visible dates, participant information, and any attachments or media. Record the device owner, device type, telephone number or account identifier, date of capture, and the person who performed it. Then arrange for a more complete collection when the matter warrants it.
Capture cloud and related sources
Many text and chat records exist in more than one place. An iPhone may have relevant data in an iCloud backup, Messages in iCloud, connected Macs or iPads, and carrier records. Android devices may synchronize to a Google account or manufacturer backup service. Enterprise messaging may reside in a corporate platform, retention archive, or mobile-device-management environment.
Do not assume a carrier can supply message content. Carriers frequently retain limited information and may retain content only briefly, if at all. Likewise, a cloud backup can be overwritten by normal device activity. Identify each plausible repository early, confirm its retention behavior, and preserve it before assuming the phone alone is the complete source.
Document a Clear Chain of Custody
Collection without documentation invites avoidable challenges. Every handoff should be traceable from the custodian to the collection professional, processing team, review platform, and producing party. The record should identify the item collected, its condition, relevant identifiers, the date and time of transfer, and the person responsible at each stage.
For sensitive matters, maintain a collection log and preserve the original data separately from working copies. Where appropriate, use hash values or other validation methods to demonstrate that collected files have not changed. Maintain access controls so that only authorized personnel can view or process private communications.
A chain of custody does not make evidence automatically admissible. It does, however, gives counsel a reliable factual foundation for explaining the collection process, responding to discovery questions, and addressing authenticity objections.
Address Modern Messaging Risks Early
Traditional SMS and MMS messages are only part of the landscape. Relevant communications may also be found in iMessage, WhatsApp, Signal, Teams, Slack, social media direct messages, and other collaboration tools. Some applications permit disappearing messages, message edits, unsend functions, or device-specific retention settings. These features can create immediate preservation risk.
The legal hold should specifically name known applications and tell custodians to suspend auto-delete or disappearing-message settings where feasible. If a business uses an enterprise messaging platform, legal and IT teams should confirm whether retention policies, legal hold capabilities, and exports are configured correctly. A policy may exist on paper while messages are still being deleted due to a licensing gap, a misconfigured archive, or a user-level setting.
When a custodian has changed devices, determine whether the prior device, backup, account data, or connected computer remains available. A phone upgrade should be treated as a potential data migration event, not a routine administrative detail.
Make the Collection Proportionate and Reviewable
Preserving everything on a personal phone may be excessive and may expose unrelated private data. At the same time, asking a custodian to choose only the messages they consider relevant can create an incomplete and self-selected record. The right approach often falls between those extremes.
Counsel can define date ranges, participants, search terms, applications, and relevant issue categories, then use a qualified collection process to capture and filter data while retaining enough context to evaluate disputed messages. The protocol should address privilege, privacy, confidential business information, and any protective-order requirements. In high-stakes matters, opposing counsel may also expect transparency about the collection methodology.
Once collected, text messages should be processed into a format suitable for legal review. Review teams need family relationships between messages and attachments, normalized dates and custodians, searchable text where available, deduplication where appropriate, and an export format that can be produced with necessary metadata. A visually faithful rendering may also be valuable for depositions, mediation, and trial exhibits, particularly where the appearance of a conversation is material.
Avoid the Most Common Preservation Failures
The most damaging mistakes are usually ordinary actions taken without legal guidance: a custodian upgrades a phone, resets it after leaving employment, turns on automatic deletion, or sends selected screenshots to counsel and deletes the rest. Another frequent failure is treating a single screenshot as the full communication, without preserving the surrounding thread and source data.
Organizations should also avoid informal collection by employees or managers who are not trained to handle evidence. Their actions can alter data, omit relevant context, expose private information, and leave no reliable record of what occurred. When the messages could affect a significant claim, investigation, or regulatory response, forensic collection and documented handling are the prudent course.
The most useful preservation step is often the next one: confirm what devices, accounts, and applications exist before routine use changes the evidence. For matters requiring forensic mobile collection, structured processing, attorney review, or trial-ready text-message exhibits, Concord Document Technologies can help legal teams move from urgent preservation to a documented, defensible workflow.
