The major cause of Microsoft Office 365 outage has been a malicious third party exploiting the system to attack it. In order to find out exactly what caused this attack, we need to first look into how the system actually works, and then we can attempt to understand how the attack occurred. Source
Microsoft Office 365 is a software designed to help people in managing their business communications, documents and data, all from a central location.
The system was created by Microsoft, but is now used by many large corporations around the world.
In the Microsoft Office 365 service, users are able to have access to an internal email system. It is this system that allows them to store, organize and manage their data, documents, contacts, calendars and other related documents.
Unfortunately, when a person uses the system to store their data, they are not actually connected to the Microsoft servers. As a result, when they want to access the system, they will get redirected to the Microsoft server on their own computer.
When this happens, most people believe that they are not connected to the Microsoft servers at all, but they are in fact connected. As a result, when they try to access the system, they are not actually able to see the information that they are trying to access. This means that whenever they use the system, they end up being redirected to another server.
To avoid this problem, Microsoft set up an anti-phishing mechanism which monitors incoming emails to see if they contain any attachments. If the attachment contains something that could potentially be a virus, the person using the email is redirected to a Microsoft security center instead.
However, when this happened to Microsoft, they were not prepared for a second, larger attack that took place just before midnight on the night of July 30th. At this point, an external entity had accessed the Microsoft Security Center and managed to compromise the system.
After they were in control of the system, they used it to launch a series of attacks on the Microsoft Office 365 systems that were running on the network, resulting in the large outage.
As a result, millions of users of the system were unable to access their data files. This has left many of them scrambling to figure out what caused the Microsoft’s giant Office 365 outage.
Unfortunately, one of the reasons why the attackers were able to gain control of the security center was because they were able to trick Microsoft into opening an email attachment that was sent by someone on the inside. The attacker was able to send out a fake email alert to every employee on the network which resulted in the security center opening the attachment which contained malware which was designed to spread to the computers on the network.
Because the malware was programmed to automatically install itself on the computers of whoever opened the email, it caused a huge security breach and allowed the hackers to gain access to everything the hackers needed. Once the hackers had access to the system, it was just a matter of time before they were able to gain access to everything that was on the network. This was the case with the Microsoft Office 365 database and all the information that was stored there.
At this point, the Office 365 team knew that they had to take action to stop the hackers from gaining access to the database and restore normal operations, but they did not know how. Luckily, however, the company realized that they had made a mistake when they realized that the source of the attack could be traced back to one of their internal servers.
Once the source was discovered, the source was quickly shut down and it was taken off-line so that the Microsoft security team could quickly find the source and stop it from causing an even bigger problem. It turned out that a virus known as “Packet Storm” had infected the company’s main database.
Because of this, Microsoft was able to isolate the source and take steps to fix the problem. As a result, it took only hours for the system to be brought back to full operation and it is expected to be back up again shortly.