Looking to expand its security appliance offerings, IronPort Systems plans to acquire PostX, a vendor of e-mail encryption software.The all-stock transaction is expected to close within the next “five or six weeks,” said Liz Landis, an IronPort spokeswoman. Specific terms of the deal were not disclosed, but PostX shareholders will receive about 7 percent of the combined company’s stock as a result of the deal, Landis said.PostX’s software can be used to deliver encrypted e-mail to a user’s mail box without the use of any special client software to decrypt the message.When the acquisition is completed, PostX’s 60 employees are expected to be relocated to IronPort’s San Bruno headquarters, Landis said. No layoffs are expected as a result of the acquisition. IronPort will sell PostX’s e-mail encryption software under the PostX Secure Envelope brand. Founded in 1999 and based in Cupertino, California, PostX counts the U.S. Postal Service, Visa USA, and Charles Schwab & Co. amongst its customers. -Robert McMillan, IDG News Service (San Francisco Bureau)Keep checking in at our CSO Security Feed page for updated news coverage. Related content feature How to pick the best endpoint detection and response solution EDR software has emerged as one of the preeminent tools in the CISO’s arsenal. Here’s what to look for and what to avoid when choosing EDR software. By Linda Rosencrance Sep 25, 2023 10 mins Intrusion Detection Software Intrusion Detection Software Intrusion Detection Software feature Top cybersecurity M&A deals for 2023 Fears of recession, rising interest rates, mass tech layoffs, and conservative spending trends are likely to make dealmakers cautious, but an ever-increasing need to defend against bigger and faster attacks will likely keep M&A activity steady in By CSO Staff Sep 22, 2023 24 mins Mergers and Acquisitions Data and Information Security IT Leadership brandpost Unmasking ransomware threat clusters: Why it matters to defenders Similar patterns of behavior among ransomware treat groups can help security teams better understand and prepare for attacks By Joan Goodchild Sep 21, 2023 3 mins Cybercrime news analysis China’s offensive cyber operations support “soft power” agenda in Africa Researchers track Chinese cyber espionage intrusions targeting African industrial sectors. By Michael Hill Sep 21, 2023 5 mins Advanced Persistent Threats Cyberattacks Critical Infrastructure Podcasts Videos Resources Events SUBSCRIBE TO OUR NEWSLETTER From our editors straight to your inbox Get started by entering your email address below. Please enter a valid email address Subscribe