LIDW26 Recap: Proving What’s Real in the Age of AI

At London International Disputes Week 2026, one theme cut through every conversation: in a world shaped by AI, the fundamental question in disputes is no longer just what happened—it’s what can you prove is real. Our session, “My Downing Street Phone Was Stolen: Proving (or Disproving) GenAI, Hacks, and Ephemeral Communications in Disputes,” explored how the evidentiary landscape is evolving and what disputes teams must do now to stay ahead.

The New Reality: Evidence Is No Longer Fixed

Disputes professionals have always worked with complex data. What’s changed is the nature of that data. Content can now be:

• Generated at scale using GenAI
• Manipulated convincingly with minimal effort
• Deleted or obscured across ephemeral platforms

As discussed during the session, the risk is no longer limited to inaccurate citations or “hallucinated” case law. The emerging challenge is far more consequential: the potential creation of entirely false evidentiary narratives that can mislead investigations, litigations, and tribunals. This shift requires a fundamental rethink of how legal teams approach trust, verification, and defensibility.

Three Frontline Challenges for Modern Disputes

Using a “cyber-sleuth” framework, the session focused on three high-impact scenarios that are increasingly common in disputes.

1. Detecting (and Questioning) AI-Generated Evidence

AI detection tools are evolving—but they are not definitive. The panel highlighted several important realities:

• AI-generated content may include watermarks or artifacts, but these can be altered or removed
• Detection tools vary significantly in capability and reliability
• False positives remain a real risk

Perhaps most importantly: AI can now fabricate highly realistic “evidence,” including emails, documents, and entire communication chains. The implication for legal teams is clear, verification cannot rely on a single tool or signal. Instead, it requires:

• Layered validation approaches
• Metadata and system-level analysis
• Collaboration with forensic experts early in the process

2. Ephemeral Messaging and the Problem of Missing Data

From Teams and Slack to WhatsApp, Signal, and newer platforms, critical communications increasingly occur in environments where messages:

• Disappear automatically
• Are not centrally governed
• May leave only partial traces

Even where data is recoverable, it may lack context. The session emphasized two critical points:

• Timing is everything—data captured early is significantly more complete than data collected months later
• Absence of evidence is itself evidence—courts are increasingly focused not just on what exists, but on why something is missing

To address this, the panel highlighted the importance of formats like Relativity Short Message Format (RSMF) to preserve conversation structure, context, and metadata in a defensible way.

3. “Digital Therapy” and Alleged Hacks

High-stress disputes often bring claims of hacking or surveillance, particularly from senior executives or high-net-worth individuals. The key takeaway: Forensics is as much about people as it is about technology.

While true compromises do occur, many cases require:

• Careful forensic triage
• Clear, evidence-based analysis
• Thoughtful communication to separate perception from reality

In these situations, success is not just identifying a breach, it’s delivering a defensible, comprehensible explanation that clients and counsel can trust.

The Bigger Shift: From Legal Expertise to Multidisciplinary Teams

One of the most consistent themes throughout the discussion was the growing necessity of integrated expertise. Modern disputes require more than legal analysis. They demand:

• Digital forensics
• Data science
• AI literacy
• Advanced eDiscovery and collection strategies

As one panelist noted, the ethical expectations for lawyers are evolving. It is no longer sufficient to rely solely on legal judgment without engaging technical experts.

What This Means for Legal Teams

The session left attendees with a clear takeaway: Defensibility in disputes now depends on how well you manage the intersection of data, technology, and expertise. Key actions for legal teams include:

• Engage forensic experts early
  Early scoping and collection decisions directly impact what evidence is available and credible.
• Adopt a layered approach to AI validation
  No single tool is definitive. Cross-verification is essential.
• Rethink data governance policies
  Ephemeral messaging is not going away. Policies must reflect real-world behavior, not ideal scenarios.
• Focus on explainability
  The ability to translate complex forensic findings into clear, tribunal-ready narratives is critical.
• Prioritize speed in data preservation
  The window for capturing complete and reliable data is narrowing.

Tradition, Trust, and Transformation

LIDW’s theme—Tradition, Trust, and Transformation—was particularly fitting.  The principles of dispute resolution haven’t changed: establish the facts, test the evidence, and build a defensible case. But the environment has. In a world where evidence can be created, altered, or erased with unprecedented ease, trust is no longer assumed, it must be proven. And that requires a new approach—one built on orchestration across legal, technical, and data disciplines to deliver outcomes that are not just persuasive, but provably sound.