"In response to IAEA's last official statement, we're now publishing additional information to prove our ability to gain access to highly sensitive information, Including Confidential 'SafeGuard' Documents, Satellite Images, Official letters, Presentations and etc," they say in the post.
"IAEA cannot just keep us away by turning off their Servers (either old or new ones!). There are plenty more of where this information came from but we guarantee that these information will stay in a very safe place with us."
The hackers claim to control more than 15 IAEA's subdomains (nucleus.iaea.org, forums.iaea.org, lists.iaea.org, and others), and that the information they published this time - database access information, email addresses of employees, and a sample of confidential documents - has been extracted from one of IAEA's new servers (“Nuclear Data Section, NDS“) that they have access to.
Their demand for not publishing additional information is the same as the first time, i.e. that the IAEA start an investigation into the activities at Israel's secret nuclear facilities.