New volcanic ash cloud

Airports in parts of Scotland and Northern Ireland have been closed because of risks from volcanic ash, the Civil Aviation Authority has said.

Glasgow, Prestwick and Derry are likely to be closed all day, Inverness shut in the morning and Edinburgh and Belfast are expecting to close in the afternoon.

Last month, volcanic ash from an Icelandic volcano grounded flights for six days.

BBC News website readers have been sending their own experiences of the airspace closure.

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Strong passwords: How to create and use them (2)

Password strategies to avoid Some common methods used to create passwords are easy to guess by criminals. To avoid weak, easy-to-guess passwords: • Avoid sequences or repeated characters. "12345678," "222222," "abcdefg," or adjacent letters on your keyboard do not help make secure passwords. • Avoid using only look-alike substitutions of numbers or symbols. Criminals and other malicious users who know enough to try and crack your password will not be fooled by common look-alike replacements, such as to replace an 'i' with a '1' or an 'a' with '@' as in "M1cr0$0ft" or "P@ssw0rd". But these substitutions can be effective when combined with other measures, such as length, misspellings, or variations in case, to improve the strength of your password. • Avoid your login name. Any part of your name, birthday, social security number, or similar information for your loved ones constitutes a bad password choice. T...

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