Synology Calendar Global Footprint

Top 10 Identified Countries

Country Observations Percentage
DE 2,606 30.14%
KR 1,375 15.90%
CN 1,260 14.57%
FR 378 4.37%
CH 295 3.41%
TW 264 3.05%
US 241 2.79%
NL 219 2.53%
RU 201 2.32%
AT 165 1.91%

Is Synology Calendar part of your extended attack surface? Bitsight helps security leaders rapidly identify exposure and detect threats in order to prioritize, communicate, and mitigate risk.

View interactive product tours

Synology Calendar Industry Footprint

Top 10 Identified Industries

*Service provider organizations (typically Technology and Telecommunications) are disproportionally represented in the results given their upstream ownership of end-user infrastructure. See our FAQs.

Industry* Observations Percentage
Telecommunications 2,902 86.70%
Technology 263 7.86%
Utilities 51 1.52%
Engineering 46 1.37%
Energy/Resources 39 1.17%
Education 18 0.54%
Business Services 6 0.18%
Media/Entertainment 5 0.15%
Government/Politics 5 0.15%
Consumer Goods 4 0.12%

Calendar Version Details

Calendar CVEs

Top 3 CVEs
CVE Number Number of Observations
CVE-2021-34812 50
CVE-2022-22682 50
CVE-2022-22686 50

Bitsight, the leading provider in Cyber Risk Management, introduced the next-generation internet scanner Bitsight Groma in May 2024. This technology continuously scans the entire internet to discover assets, collect asset attribution evidence, and identify an ever-growing set of security observations, such as vulnerabilities and misconfigurations. Groma’s scanning activities presently encompass:


  • 40 million-plus monitored organizations
  • 250 million-plus host names
  • 4 billion-plus routable IPv4 and IPv6 addresses

Greynoise’s recent study testifies the speed of Bitsight Groma.

Bitsight data discovery
Governance charcoal background

Bitsight TRACE team investigates security incidents and identifies vulnerabilities and threats.

View latest security research 

See what you’re up against across the expanding attack surface. Prioritize what matters most. And mitigate where you’re most vulnerable.

External Attack Surface Management