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managed:

The verb manage has 7 senses (first 5 from tagged texts)

1. (27) pull off, negociate, bring off, carry off, manage -- (be successful; achieve a goal; "She succeeded in persuading us all"; "I managed to carry the box upstairs"; "She pulled it off, even though we never thought her capable of it"; "The pianist negociated the difficult runs")
2. (5) manage, deal, care, handle -- (be in charge of, act on, or dispose of; "I can deal with this crew of workers"; "This blender can't handle nuts"; "She managed her parents' affairs after they got too old")
3. (3) cope, get by, make out, make do, contend, grapple, deal, manage -- (come to terms with; "We got by on just a gallon of gas"; "They made do on half a loaf of bread every day")
4. (3) oversee, supervise, superintend, manage -- (watch and direct; "Who is overseeing this project?")
5. (2) wangle, finagle, manage -- (achieve something by means of trickery or devious methods)
6. do, manage -- (carry on or function; "We could do with a little more help around here")
7. wield, handle, manage -- (handle effectively; "The burglar wielded an axe"; "The young violinist didn't manage her bow very well")

security:

The noun security has 9 senses (first 3 from tagged texts)

1. (17) security -- (the state of being free from danger or injury; "we support the armed services in the name of national security")
2. (5) security, protection -- (defense against financial failure; financial independence; "his pension gave him security in his old age"; "insurance provided protection against loss of wages due to illness")
3. (1) security -- (freedom from anxiety or fear; "the watch dog gave her a feeling of security")
4. security, certificate -- (a formal declaration that documents a fact of relevance to finance and investment; the holder has a right to receive interest or dividends; "he held several valuable securities")
5. security, surety -- (property that your creditor can claim in case you default on your obligation; "bankers are reluctant to lend without good security")
6. security, security department -- (a department responsible for the security of the institution's property and workers; "the head of security was a former policeman")
7. security, surety -- (a guarantee that an obligation will be met)
8. security system, security measure, security -- (an electrical device that sets off an alarm when someone tries to break in)
9. security, security measures -- (measures taken as a precaution against theft or espionage or sabotage etc.; "military security has been stepped up since the recent uprising")

managed security

CERT Coordination Center
The CERT Coordination Center studies Internet security vulnerabilities, provides incident response services to sites that have been the victims of attack, publishes a variety of security alerts, researches security and survivability in wide-area-networked computing, and develops information to help you improve security at your site.
http://www.cert.org/

Network World Fusion
News, reviews and analysis for enterprise network personnel.
http://www.nwfusion.com

NDP Managed Security
Secure, managed firewall and service provider. Windows/Unix business line application integration and consulting. Security analysis.
http://www.ndpms.com