Maintaining strong passwords in online is always a challenge for everyone. Maintaining a same password for all websites is very risk. No matter how strong your password is, even if it is compromised in one website then you loose your data.
Choosing strong password is not so hard. There are many ways to choose strong password. Also you can check your strength of the password in various ways.
Mozilla come up with a video explanation on how to maintain different password for different websites in easy manner. These tips will help you protect your online data.
What if barcodes were replaced by chips that could not only be read more quickly but could have their information updated as well? And what if those chips could communicate with other devices? These chips already exist and the technology they use is called RFID – short for Radio Frequency IDentification.
RFID from wiki …
Radio-frequency identification (RFID) is the use of an object (typically referred to as an RFID tag) applied to or incorporated into a product, animal, or person for the purpose of identification and tracking using radio waves. Some tags can be read from several meters away and beyond the line of sight of the reader.
Below given animation video is RFIDin plain English and explains how it is rapidly becoming a key technology.