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Copy edited (e.g. ref. <http://en.wikipedia.org/wiki/Transport_Layer_Security>). Added some context.

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edit approved May 1, 2016 at 9:35

It's doubtful, but consider the following,

The connection to Google Search is encrypted. As far as we know, Google Search History has not been compromised. In the event you have Google Search and Web History Enabled, your search history could theoretically be accessed by someone who managed to break into your account. You stated that you didn't press enter,enter; it probably was never stored in your account if that's the case.
In the event Google logs search suggestions before you hit enter it could theoretically be linked to your IP Addressaddress and/or Accountaccount if you were logged in at the time. If your account was court-ordered for information in a timely manner it MIGHTmight be possible for them to retrieve the information and test it against various accounts and/or to use against full disk-encryption. If this is a concern to you then I would change the password in question.
If someone is actively attacking your wireless connection, has a false root ssl certSSL certificate installed on your computer, or using another MITMMITM technique they might guess that it's a password and use it to aid further attacks.

In the end it depends on two factors: who your adversary is and how valuable the password is. If I were in your given situation I would probably just change my password to stay on the safe side.

It's doubtful but consider the following,

The connection to Google Search is encrypted. As far as we know Google Search History has not been compromised. In the event you have Google Search and Web History Enabled, your search history could theoretically be accessed by someone who managed to break into your account. You stated that you didn't press enter, it probably was never stored in your account if that's the case.
In the event Google logs search suggestions before you hit enter it could theoretically be linked to your IP Address and/or Account if you were logged in at the time. If your account was court-ordered for information in a timely manner it MIGHT be possible for them to retrieve the information and test it against various accounts and/or to use against full disk-encryption. If this is a concern to you then I would change the password in question.
If someone is actively attacking your wireless connection, has a false root ssl cert installed on your computer, or using another MITM technique they might guess that it's a password and use it to aid further attacks.

In the end it depends on two factors: who your adversary is and how valuable the password is. If I were in your given situation I would probably just change my password to stay on the safe side.

It's doubtful, but consider the following

The connection to Google Search is encrypted. As far as we know, Google Search History has not been compromised. In the event you have Google Search and Web History Enabled, your search history could theoretically be accessed by someone who managed to break into your account. You stated that you didn't press enter; it probably was never stored in your account if that's the case.
In the event Google logs search suggestions before you hit enter it could theoretically be linked to your IP address and/or account if you were logged in at the time. If your account was court-ordered for information in a timely manner it might be possible for them to retrieve the information and test it against various accounts and/or to use against full disk-encryption. If this is a concern to you then I would change the password in question.
If someone is actively attacking your wireless connection, has a false root SSL certificate installed on your computer, or using another MITM technique they might guess that it's a password and use it to aid further attacks.

In the end it depends on two factors: who your adversary is and how valuable the password is. If I were in your given situation I would probably just change my password to stay on the safe side.

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created Apr 30, 2016 at 0:27

Nathaniel Suchy

It's doubtful but consider the following,

The connection to Google Search is encrypted. As far as we know Google Search History has not been compromised. In the event you have Google Search and Web History Enabled, your search history could theoretically be accessed by someone who managed to break into your account. You stated that you didn't press enter, it probably was never stored in your account if that's the case.
In the event Google logs search suggestions before you hit enter it could theoretically be linked to your IP Address and/or Account if you were logged in at the time. If your account was court-ordered for information in a timely manner it MIGHT be possible for them to retrieve the information and test it against various accounts and/or to use against full disk-encryption. If this is a concern to you then I would change the password in question.
If someone is actively attacking your wireless connection, has a false root ssl cert installed on your computer, or using another MITM technique they might guess that it's a password and use it to aid further attacks.

In the end it depends on two factors: who your adversary is and how valuable the password is. If I were in your given situation I would probably just change my password to stay on the safe side.