  The availability of public services through online platforms has improved the
coverage and efficiency of essential services provided to citizens worldwide.
These services also promote transparency and foster citizen participation in
government processes. However, the increased online presence also exposes
sensitive data exchanged between citizens and service providers to a wider
range of security threats. Therefore, ensuring the security and trustworthiness
of online services is crucial to Electronic Government (EGOV) initiatives'
success. Hence, this work assesses the security posture of online platforms
hosted in 3068 governmental domain names, across all UN Member States, in three
dimensions: support for secure communication protocols; the trustworthiness of
their digital certificate chains; and services' exposure to known
vulnerabilities. The results indicate that despite its rapid development, the
public sector still falls short in adopting international standards and best
security practices in services and infrastructure management. This reality
poses significant risks to citizens and services across all regions and income
levels.
