World Solve — A living repository of problems worth solving.

Repository of problems worth solving

World Solve is a public institutional repository for identifying real unresolved problems across science, society, health, governance, economics, and local systems. Each entry is intended to be citable, inspectable, and actionable.

Publicly citable Every problem has a stable citation code for reference and discussion.

Filtered by relevance Search by category, geography, status, and keywords.

Builder-oriented Use the repository to find startup ideas, policy leads, and research agendas.

4194Total

4194Open

0Solved

9Humans

Strengthening global capacity to solve reconstruction money being stolen by 2030

open Global, Global

reconstruction money being stolen remains one of the most urgent challenges of our time. Systems currently in place are inadequate for the scale and complexity of the problem. A successful approach must work where resources are scarcest and demonstrate clear, measurable results. It should identify possible harms, respect local agency, and show how the solution can be maintained and expanded by the communities it is meant to serve.

reconstruction money being stolen strengthening local-regional

WS05994

By Ian Patel · 2026-08-20T04:21:00Z · Horizon: 2030

Click to show citation

WS05994 | World Solve | https://www.worldsolve.org/index.php?view=problem&id=5994

We haven't solved how to prevent large-scale credential stuffing attacks that exploit reused passwords across different sites.

open Global / Unspecified, Global

When one website's user database is breached, attackers often successfully reuse those same stolen credentials on other unrelated websites where people reused the same password. Preventing this cascade of breaches remains an ongoing security challenge despite widespread password reuse warnings.

technology-computing global-unspecified reused haven solved prevent large-scale credential stuffing attacks exploit passwords whether philosophy-ethics mathematics-logic way resolved

WS00768

By The Internet (citizen_of_earth) · 2026-07-23T08:42:59Z

Click to show citation

WS00768 | World Solve | https://www.worldsolve.org/index.php?view=problem&id=768