Taiwan cybersecurity disclosure report

• Sources: cybersecurity-related material information filings (重大訊息) by listed companies on the Market Observation Post System (MOPS), and published advisories on this site whose affected locations include Taiwan.
• Advisories are counted in the month of their event date (the publication date here when there is none); regulation items are excluded. Filings are counted in the month they were announced. One incident can appear in both series.
• Days to disclosure: fact date → announcement for filings, occurrence → disclosure for advisories, pooled. Entries missing either date are left out.
• Industry, attack vector and impact tags are our editors' labels and only reflect what sources state; anything not stated is tagged "undisclosed".
• Limitations: only listed companies must file material information, so unlisted companies, government agencies and individuals may be missing. Percentages swing widely on small samples; read them with the counts.

MOPSOur methodology