Security researchers have discovered a new Android malware called DEFENSOR ID that snuck its way into the Google Play Store. Forensic analysis shows that the malware takes advantage of an Android device’s Accessibility Services to infiltrate the system and cause damage without being detected.

Arranging meetings that work with everyone’s schedules is a pain — especially if participants don’t work in your office. A calendar that is easy to share publicly simplifies everything from scheduling calls with clients to quarterly meetings with business partners.

If you wish to bring down your wireless bill, download and use a VoIP app for making calls instead. Most apps are easy to use, and are low-cost or free depending on how you make your calls. Here are four of the best VoIP apps in the market today.

WhatsApp
The increasingly popular WhatsApp provides more than just text chats between users.

Knowing your friend’s schedules comes in handy when you’re trying to arrange a reunion, and the same can be said for businesses. Through calendar sharing, employees can simultaneously arrange meetings, prioritize projects and set schedules for contacting customers.