0P3N Blog
Cybrary’s Open Blog is a user contributed cybersecurity knowledge base that brings together content highlighting the latest tools, exploits, technologies and insights in the industry.


Finding a solution to fix 0x800cc0b errors in an Outlook account is not a difficult task. The following article describes the solution to fix Outlook SMTP issues that result in problems in receiving and sending messages in an MS Outlook mailbox. Microsoft Outlook has always been the most preferred email client. It is very popular among business ...


In this digital world, most people are dependent on electronic PDF documents either for sharing data or for communication purposes. PDF files serve as important resources in many companies for communication purposes. Sometimes, due to the large collections of these documents, users face some file management issues or cannot find a suitable solution to combine multiple PDFs into one. ...


It is a fact that the changing of emailing apps is a very tough process for commercial and home users. Although frequently, it is needed for commercial users, sometimes, it becomes a necessary task for home users. But the major problem is deciding how to export Outlook folders to PDF or how to convert multiple emails to PDF ...


EML format is mainly used to save email messages in plain text files in email programs. It may also include attachments sent with the message. In addition, EML files are supported by many applications like Windows Live Mail, Thunderbird, etc. As it stores a single message in each file, it becomes difficult for the users to manage a large ...


Out of all the numerous types of cyberattacks, Denial of Service (DoS) and Distributed Denial of Service (DDoS) attacks are probably among the most vicious. That’s because they can cause an exceptional amount of damage, especially long-term damage, in a relatively short amount of time, with no warning whatsoever. The basic form, a DoS attack, is an online attack ...


Cyberattacks are running rampant today. It’s like an epidemic, with one major attack after another making headlines in national and worldwide news. These threats attack individuals and organizations, with mass attacks on organizations being especially catastrophic, since they compromise centralized sources of information that can impact millions of individuals and other associated entities. To the average, non-technical person, not ...


MS Exchange Server is an email server that is widely used by SMBs as well as enterprises to store users’ data such as emails, attachments, calendar items, contacts, calendars, tasks, journals, etc. in respective mailboxes known as users’ mailboxes. All these data items are stored safely and securely in an Exchange database (EDB) file. Nonetheless, there are ...


When working with MS Excel, encountering errors and application crashes is commonplace if the file you’re working on contains bulky data like reports, forms, formulas, charts, and the like. Such Excel files are often at a high risk of data corruption. But then, handling large data sets and performing complex operations on them is what MS Excel ...


Almost every time, we receive our monthly bank statements or credit card statements in PDF format. These documents are password-protected, as they contain personal information, so no unauthorized person can open it. But this type of security is not useful sometimes because it annoys the user to enter the password every time to open the PDF documents. But there ...


In this micro handbook, we’ll cover the key elements of building a solid SOC Analyst career path. In a broad sense, security analysts help keep computing safe and work to protect computer users from loss, harm and other sorts of damage. They’re security assurance experts who constantly examine an organization's systems, ...