Skip to content

Hack Tuesday

Week 21–27 May 2025

226 cyberattacks across 44 countries

Map of the cyberattacks per country, Week 21–27 May 2025
  • The most active threat actor last week was NoName057(16) claiming responsibility for 36 cyber attacks.
  • The USA is the most affected country, accounting for 22.6% of incidents, with 51 cyber attacks.
  • The Gov / Mil / LE sector is the most impacted, accounting for 28.8% of incidents with 65 cyber attacks.
  • The estimated Critical cyber attacks account to 25 (11.1% of the total).
  • Overall, the claimed compromised data amounts to approximately 18.7 TB.

Top 5 cyber threat actors of the week

Top 5 cyber threat actors of the week

Top 5 targeted industries of the week

Top 5 targeted industries of the week

Top 5 targeted countries of the week

Top 5 targeted countries of the week

Top 5 impacted victims of the week

CountryVictimESIX©SeverityDetails
Department of Culture and Tourism View details →
Cabinet of the United Arab Emirates View details →
Government of Dubai Media Office View details →
Estudio Aduanero LM S.A. View details →
Iptelecom GmbH View details →

Disclaimer:

Our database is compiled from publicly available information that has been hand-picked and retrieved from both the Clear Web and the Dark Web.

For every attack we classify and analyze, we calculate an Estimated Severity Index (ESIX©) on a scale of one to ten, corresponding to five impact categories, from low to extreme.

Data quality matters to us. If you notice any error or inconsistency, please let us know at data@hackmanac.com. We will investigate, review and, where needed, correct it.

Go beyond Hack Tuesday,
get the full data!

Use HackRisk to analyze and compare incidents by severity score, grouped by industry, country, technique, and threat actor. Use HackLoss to understand the cost to their victims and compare global loss trends over time.